Choose Amp when
Choose Amp when developers who prefer agentic work in a terminal or connected editor.
Amp vs Codex
Which AI coding workflow fits you?
Reviewed Jul 12, 2026
47-field comparison matrix
| Dimension |  AmpTerminal-first, multi-model coding agentView full Amp analysis |  CodexCross-surface coding agent and multi-agent command centerView full Codex analysis | Official evidence |
|---|---|---|---|
| Product formDetermines whether adoption replaces the primary editor or layers an agent across existing tools. | Terminal-first, multi-model coding agent | Cross-surface coding agent and multi-agent command center | Amp Owner's Manual OpenAI Codex product overview |
| Primary surfacesShows how much of the team's current development environment can remain in place. | Interactive terminal CLI · VS Code and compatible editor extension · JetBrains IDE integration · Web thread viewer and remote control · TypeScript SDK · Non-interactive and streaming JSON CLI | ChatGPT desktop app in Codex mode · Codex IDE extension · Codex CLI · Codex web · Codex cloud · GitHub | Amp Owner's Manual OpenAI Codex product overview |
| Execution environmentsAffects machine usage, task isolation, and the ability to continue long-running work away from a laptop. | Local workspace on macOS or Linux · Windows through WSL · Remote Orb machine · Self-operated Amp runner · SSH-connected environment | Local workspace · Git worktree · OpenAI-managed cloud container | Amp Owner's Manual OpenAI Codex product overview |
| Model strategyInfluences model choice, vendor concentration, and how usage costs vary by task. | What Amp is — Model strategy: Amp calls itself a frontier coding agent for terminal and editor use. It routes work across several models, exposes four task modes, and stores agent interactions as threads that can be continued and shared.Confirmed | What Codex is — Model strategy: Codex is a coding agent connected by a ChatGPT account across the desktop app, IDE, terminal, web, and cloud. The desktop experience is designed as a command center for supervising multiple agents and long-running work.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Free starting pointSets the cost of running a real proof of concept before committing a team. | $0/plan — Free entry available. Amp Free — interactive free credits exist, but new access is currently full and allowances may be paused or reduced | $0/plan — Free entry available. Codex is included across ChatGPT plans, including Free and Go, with limits that vary by plan | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Best-fit buying archetypeTurns the feature inventory into an explicit initial choice while keeping editorial judgment separate from product facts. | What Amp is — Best-fit buying archetype: Amp calls itself a frontier coding agent for terminal and editor use. It routes work across several models, exposes four task modes, and stores agent interactions as threads that can be continued and shared.Confirmed | What Codex is — Best-fit buying archetype: Codex is a coding agent connected by a ChatGPT account across the desktop app, IDE, terminal, web, and cloud. The desktop experience is designed as a command center for supervising multiple agents and long-running work.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Native full editorDetermines migration effort and whether developers can consolidate manual coding and agent work into one editor. | Editor and coding workflow — Native full editor: Amp works primarily through an interactive terminal UI or connected editor. It inspects and edits a workspace, runs shell commands and tests, reviews code, and can attach thread links to commits for delivery context.Confirmed | Coding workflow — Native full editor: Codex can inspect repositories, edit files, execute commands and tests, review diffs, and complete substantial engineering tasks. Local work is available through the app, IDE extension, and CLI, while cloud tasks can continue independently.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Dedicated inline completionInline completion affects hundreds of small daily edits that do not warrant delegating a full agent task. | Editor and coding workflow — Dedicated inline completion: Amp works primarily through an interactive terminal UI or connected editor. It inspects and edits a workspace, runs shell commands and tests, reviews code, and can attach thread links to commits for delivery context.Confirmed | Coding workflow — Dedicated inline completion: Codex can inspect repositories, edit files, execute commands and tests, review diffs, and complete substantial engineering tasks. Local work is available through the app, IDE extension, and CLI, while cloud tasks can continue independently.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| End-to-end agent changesShows whether the product can move beyond suggestions to implementation, testing, and revision. | Editor and coding workflow — End-to-end agent changes: Amp works primarily through an interactive terminal UI or connected editor. It inspects and edits a workspace, runs shell commands and tests, reviews code, and can attach thread links to commits for delivery context.Confirmed | Coding workflow — End-to-end agent changes: Codex can inspect repositories, edit files, execute commands and tests, review diffs, and complete substantial engineering tasks. Local work is available through the app, IDE extension, and CLI, while cloud tasks can continue independently.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Codebase context approachContext retrieval quality becomes more important as repository size and architectural complexity grow. | Editor and coding workflow — Codebase context approach: Amp works primarily through an interactive terminal UI or connected editor. It inspects and edits a workspace, runs shell commands and tests, reviews code, and can attach thread links to commits for delivery context.Confirmed | Coding workflow — Codebase context approach: Codex can inspect repositories, edit files, execute commands and tests, review diffs, and complete substantial engineering tasks. Local work is available through the app, IDE extension, and CLI, while cloud tasks can continue independently.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Visual and frontend workflowVisual input and browser verification reduce the gap between generated frontend code and the intended design. | Editor and coding workflow — Visual and frontend workflow: Amp works primarily through an interactive terminal UI or connected editor. It inspects and edits a workspace, runs shell commands and tests, reviews code, and can attach thread links to commits for delivery context.Confirmed | Coding workflow — Visual and frontend workflow: Codex can inspect repositories, edit files, execute commands and tests, review diffs, and complete substantial engineering tasks. Local work is available through the app, IDE extension, and CLI, while cloud tasks can continue independently.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Terminal, build, and test executionThe implementation loop is incomplete if the agent cannot run the repository's own verification commands. | Editor and coding workflow — Terminal, build, and test execution: Amp works primarily through an interactive terminal UI or connected editor. It inspects and edits a workspace, runs shell commands and tests, reviews code, and can attach thread links to commits for delivery context.Confirmed | Coding workflow — Terminal, build, and test execution: Codex can inspect repositories, edit files, execute commands and tests, review diffs, and complete substantial engineering tasks. Local work is available through the app, IDE extension, and CLI, while cloud tasks can continue independently.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Debugging workflowShows whether the product can diagnose runtime behavior rather than only rewrite code from static context. | Editor and coding workflow — Debugging workflow: Amp works primarily through an interactive terminal UI or connected editor. It inspects and edits a workspace, runs shell commands and tests, reviews code, and can attach thread links to commits for delivery context.Confirmed | Coding workflow — Debugging workflow: Codex can inspect repositories, edit files, execute commands and tests, review diffs, and complete substantial engineering tasks. Local work is available through the app, IDE extension, and CLI, while cloud tasks can continue independently.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Project instructions and rulesPersistent instructions reduce repeated prompting and encode architecture, testing, and review requirements. | Context and extensibility — Project instructions and rules: Amp combines AGENTS.md, skills, plugins, MCP servers, custom modes, subagents, settings, and a TypeScript SDK. Plugins can observe lifecycle events, add tools and commands, render UI, and delegate permission decisions.Confirmed | Context and extensibility — Project instructions and rules: Codex uses AGENTS.md, configuration, rules, skills, plugins, MCP, hooks, and programmable interfaces to align tasks with project and team requirements.Confirmed | Amp Owner's Manual Introducing the Codex app |
| Reusable skillsSkills turn specialized repeatable work into a maintained capability instead of a copied prompt. | Context and extensibility — Reusable skills: Amp combines AGENTS.md, skills, plugins, MCP servers, custom modes, subagents, settings, and a TypeScript SDK. Plugins can observe lifecycle events, add tools and commands, render UI, and delegate permission decisions.Confirmed | Context and extensibility — Reusable skills: Codex uses AGENTS.md, configuration, rules, skills, plugins, MCP, hooks, and programmable interfaces to align tasks with project and team requirements.Confirmed | Amp Owner's Manual Introducing the Codex app |
| MCP supportMCP enables reusable connections to external tools, services, and private operational context. | Context and extensibility — MCP support: Amp combines AGENTS.md, skills, plugins, MCP servers, custom modes, subagents, settings, and a TypeScript SDK. Plugins can observe lifecycle events, add tools and commands, render UI, and delegate permission decisions.Confirmed | Context and extensibility — MCP support: Codex uses AGENTS.md, configuration, rules, skills, plugins, MCP, hooks, and programmable interfaces to align tasks with project and team requirements.Confirmed | Amp Owner's Manual Introducing the Codex app |
| Plugins and marketplaceA managed extension ecosystem affects discovery, reuse, permissions, and supply-chain governance. | Context and extensibility — Plugins and marketplace: Amp combines AGENTS.md, skills, plugins, MCP servers, custom modes, subagents, settings, and a TypeScript SDK. Plugins can observe lifecycle events, add tools and commands, render UI, and delegate permission decisions.Confirmed | Context and extensibility — Plugins and marketplace: Codex uses AGENTS.md, configuration, rules, skills, plugins, MCP, hooks, and programmable interfaces to align tasks with project and team requirements.Confirmed | Amp Owner's Manual Introducing the Codex app |
| HooksHooks allow deterministic checks and integrations around otherwise probabilistic agent behavior. | Context and extensibility — Hooks: Amp combines AGENTS.md, skills, plugins, MCP servers, custom modes, subagents, settings, and a TypeScript SDK. Plugins can observe lifecycle events, add tools and commands, render UI, and delegate permission decisions.Confirmed | Context and extensibility — Hooks: Codex uses AGENTS.md, configuration, rules, skills, plugins, MCP, hooks, and programmable interfaces to align tasks with project and team requirements.Confirmed | Amp Owner's Manual Introducing the Codex app |
| SDK and non-interactive executionProgrammable entry points determine whether the agent can be embedded in CI, scripts, and internal tooling. | Context and extensibility — SDK and non-interactive execution: Amp combines AGENTS.md, skills, plugins, MCP servers, custom modes, subagents, settings, and a TypeScript SDK. Plugins can observe lifecycle events, add tools and commands, render UI, and delegate permission decisions.Confirmed | Context and extensibility — SDK and non-interactive execution: Codex uses AGENTS.md, configuration, rules, skills, plugins, MCP, hooks, and programmable interfaces to align tasks with project and team requirements.Confirmed | Amp Owner's Manual Introducing the Codex app |
| Team capability distributionCentral distribution prevents every developer from maintaining incompatible private agent setups. | Context and extensibility — Team capability distribution: Amp combines AGENTS.md, skills, plugins, MCP servers, custom modes, subagents, settings, and a TypeScript SDK. Plugins can observe lifecycle events, add tools and commands, render UI, and delegate permission decisions.Confirmed | Context and extensibility — Team capability distribution: Codex uses AGENTS.md, configuration, rules, skills, plugins, MCP, hooks, and programmable interfaces to align tasks with project and team requirements.Confirmed | Amp Owner's Manual Introducing the Codex app |
| Parallel agentsParallelism is the main throughput advantage of moving from pair programming to agent orchestration. | Agents and orchestration — Parallel agents: Amp supports custom subagents, remote machines, remote-created threads, web control, and programmatic SDK sessions. Orbs move work off the laptop, while runners let ampcode.com dispatch to machines a team controls.Confirmed | Agents and orchestration — Parallel agents: Codex supports multiple agents running in parallel across projects. Built-in worktrees isolate local tasks, cloud environments isolate delegated work, and scheduled Automations handle recurring jobs.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Git worktree isolationWorktrees let multiple agents change one repository without colliding in the same checkout. | Agents and orchestration — Git worktree isolation: Amp supports custom subagents, remote machines, remote-created threads, web control, and programmatic SDK sessions. Orbs move work off the laptop, while runners let ampcode.com dispatch to machines a team controls.Confirmed | Agents and orchestration — Git worktree isolation: Codex supports multiple agents running in parallel across projects. Built-in worktrees isolate local tasks, cloud environments isolate delegated work, and scheduled Automations handle recurring jobs.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Cloud agentsCloud execution keeps long tasks running without tying them to developer hardware. | Agents and orchestration — Cloud agents: Amp supports custom subagents, remote machines, remote-created threads, web control, and programmatic SDK sessions. Orbs move work off the laptop, while runners let ampcode.com dispatch to machines a team controls.Confirmed | Agents and orchestration — Cloud agents: Codex supports multiple agents running in parallel across projects. Built-in worktrees isolate local tasks, cloud environments isolate delegated work, and scheduled Automations handle recurring jobs.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| SubagentsSubagents allow a primary task to delegate exploration and implementation without blocking the parent workflow. | Agents and orchestration — Subagents: Amp supports custom subagents, remote machines, remote-created threads, web control, and programmatic SDK sessions. Orbs move work off the laptop, while runners let ampcode.com dispatch to machines a team controls.Confirmed | Agents and orchestration — Subagents: Codex supports multiple agents running in parallel across projects. Built-in worktrees isolate local tasks, cloud environments isolate delegated work, and scheduled Automations handle recurring jobs.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Local and cloud continuityContinuity determines whether developers can delegate, resume, and locally verify work without recreating context. | Agents and orchestration — Local and cloud continuity: Amp supports custom subagents, remote machines, remote-created threads, web control, and programmatic SDK sessions. Orbs move work off the laptop, while runners let ampcode.com dispatch to machines a team controls.Confirmed | Agents and orchestration — Local and cloud continuity: Codex supports multiple agents running in parallel across projects. Built-in worktrees isolate local tasks, cloud environments isolate delegated work, and scheduled Automations handle recurring jobs.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Scheduled automationsScheduled background work is essential for recurring triage, monitoring, and maintenance rather than one-off coding. | Agents and orchestration — Scheduled automations: Amp supports custom subagents, remote machines, remote-created threads, web control, and programmatic SDK sessions. Orbs move work off the laptop, while runners let ampcode.com dispatch to machines a team controls.Confirmed | Agents and orchestration — Scheduled automations: Codex supports multiple agents running in parallel across projects. Built-in worktrees isolate local tasks, cloud environments isolate delegated work, and scheduled Automations handle recurring jobs.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Mobile and remote supervisionRemote supervision matters when agents run longer than a normal editor session or need approval away from a desk. | Agents and orchestration — Mobile and remote supervision: Amp supports custom subagents, remote machines, remote-created threads, web control, and programmatic SDK sessions. Orbs move work off the laptop, while runners let ampcode.com dispatch to machines a team controls.Confirmed | Agents and orchestration — Mobile and remote supervision: Codex supports multiple agents running in parallel across projects. Built-in worktrees isolate local tasks, cloud environments isolate delegated work, and scheduled Automations handle recurring jobs.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Diff review and feedbackA strong review surface keeps humans in control without forcing them to inspect an agent's entire execution log. | Delivery and code review — Diff review and feedback: Amp supports repository review, Git-aware threads, automated commits, and thread links that explain agent provenance. Shareable thread visibility gives reviewers access to prompts, context, and tool activity when policy permits.Confirmed | Delivery and code review — Diff review and feedback: Codex connects implementation with diff review, testing, GitHub, pull requests, and dedicated code review. Local and cloud output remains reviewable before it is merged.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Git isolation and rollbackRollback and isolation reduce the cost of trying alternative implementations or recovering from a poor edit. | Delivery and code review — Git isolation and rollback: Amp supports repository review, Git-aware threads, automated commits, and thread links that explain agent provenance. Shareable thread visibility gives reviewers access to prompts, context, and tool activity when policy permits.Confirmed | Delivery and code review — Git isolation and rollback: Codex connects implementation with diff review, testing, GitHub, pull requests, and dedicated code review. Local and cloud output remains reviewable before it is merged.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Pull-request workflowPull-request integration determines how easily delegated work enters a normal engineering review process. | Delivery and code review — Pull-request workflow: Amp supports repository review, Git-aware threads, automated commits, and thread links that explain agent provenance. Shareable thread visibility gives reviewers access to prompts, context, and tool activity when policy permits.Confirmed | Delivery and code review — Pull-request workflow: Codex connects implementation with diff review, testing, GitHub, pull requests, and dedicated code review. Local and cloud output remains reviewable before it is merged.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Dedicated code reviewDedicated review can find defects independently of the agent that authored the change, but packaging and cost differ. | Delivery and code review — Dedicated code review: Amp supports repository review, Git-aware threads, automated commits, and thread links that explain agent provenance. Shareable thread visibility gives reviewers access to prompts, context, and tool activity when policy permits.Confirmed | Delivery and code review — Dedicated code review: Codex connects implementation with diff review, testing, GitHub, pull requests, and dedicated code review. Local and cloud output remains reviewable before it is merged.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| CI and PR follow-throughFollow-through reduces the manual loop of watching checks, reading failures, patching, and waiting again. | Delivery and code review — CI and PR follow-through: Amp supports repository review, Git-aware threads, automated commits, and thread links that explain agent provenance. Shareable thread visibility gives reviewers access to prompts, context, and tool activity when policy permits.Confirmed | Delivery and code review — CI and PR follow-through: Codex connects implementation with diff review, testing, GitHub, pull requests, and dedicated code review. Local and cloud output remains reviewable before it is merged.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Verification artifactsArtifacts make it possible to judge whether an agent actually tested and inspected its work. | Delivery and code review — Verification artifacts: Amp supports repository review, Git-aware threads, automated commits, and thread links that explain agent provenance. Shareable thread visibility gives reviewers access to prompts, context, and tool activity when policy permits.Confirmed | Delivery and code review — Verification artifacts: Codex connects implementation with diff review, testing, GitHub, pull requests, and dedicated code review. Local and cloud output remains reviewable before it is merged.Confirmed | Amp Owner's Manual OpenAI Codex product overview |
| Free planA free plan supports a real repository trial before procurement or team rollout. | $0/plan — Free entry available. Amp Free — interactive free credits exist, but new access is currently full and allowances may be paused or reduced | $0/plan — Free entry available. Codex is included across ChatGPT plans, including Free and Go, with limits that vary by plan | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Personal paid entryShows the recurring commitment required for sustained personal use without conflating a client subscription with a platform bundle. | $5/credit purchase — Minimum pay-as-you-go credit purchase. Minimum pay-as-you-go credit purchase. Individuals and non-enterprise workspaces pay the underlying model and tool cost with zero markup and no subscription commitment. Credits are pooled within a workspace and expire after one year of account inactivity. Enterprise usage costs 50% more and starts with a one-time $1,000 usage purchase. | $null/plan-dependent — See official pricing. No standalone individual price is listed in the reviewed pricing material. Codex usage draws from the plan's agentic usage and credit pool. The current rate card primarily maps model input, cached-input, and output tokens to credits. | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Primary usage unitThe billing unit determines whether cost forecasting follows requests, model list prices, tokens, or credits. | Pricing and usage — Primary usage unit: Paid Amp has no subscription: users buy at least $5 in credits and non-enterprise workspaces are charged the underlying provider cost with no markup. Amp Free exists for interactive sessions but is currently closed to new access and its allowance is not guaranteed.Confirmed | Pricing and usage — Primary usage unit: Codex is included through ChatGPT plans rather than sold only as one standalone client subscription. Limits vary by plan, and additional use is managed through a credits system whose cost depends on model and token mix.Confirmed | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Overage behaviorOverage rules determine whether work stops at a limit or continues with a variable bill. | Pricing and usage — Overage behavior: Paid Amp has no subscription: users buy at least $5 in credits and non-enterprise workspaces are charged the underlying provider cost with no markup. Amp Free exists for interactive sessions but is currently closed to new access and its allowance is not guaranteed.Confirmed | Pricing and usage — Overage behavior: Codex is included through ChatGPT plans rather than sold only as one standalone client subscription. Limits vary by plan, and additional use is managed through a credits system whose cost depends on model and token mix.Confirmed | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Team entry planTeam pricing determines the baseline before variable model use, review, and enterprise controls. | $null/plan-dependent — See official pricing. No standalone team price is listed in the reviewed pricing material. Individuals and non-enterprise workspaces pay the underlying model and tool cost with zero markup and no subscription commitment. Credits are pooled within a workspace and expire after one year of account inactivity. Enterprise usage costs 50% more and starts with a one-time $1,000 usage purchase. | $null/plan-dependent — See official pricing. No standalone team price is listed in the reviewed pricing material. Codex usage draws from the plan's agentic usage and credit pool. The current rate card primarily maps model input, cached-input, and output tokens to credits. | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Code-review billingReview volume can become a material cost separate from interactive coding. | Pricing and usage — Code-review billing: Paid Amp has no subscription: users buy at least $5 in credits and non-enterprise workspaces are charged the underlying provider cost with no markup. Amp Free exists for interactive sessions but is currently closed to new access and its allowance is not guaranteed.Confirmed | Pricing and usage — Code-review billing: Codex is included through ChatGPT plans rather than sold only as one standalone client subscription. Limits vary by plan, and additional use is managed through a credits system whose cost depends on model and token mix.Confirmed | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Enterprise billing and usage administrationLarge teams need spend visibility, procurement support, allocation controls, and auditability in addition to feature access. | Pricing and usage — Enterprise billing and usage administration: Paid Amp has no subscription: users buy at least $5 in credits and non-enterprise workspaces are charged the underlying provider cost with no markup. Amp Free exists for interactive sessions but is currently closed to new access and its allowance is not guaranteed.Confirmed | Pricing and usage — Enterprise billing and usage administration: Codex is included through ChatGPT plans rather than sold only as one standalone client subscription. Limits vary by plan, and additional use is managed through a credits system whose cost depends on model and token mix.Confirmed | Amp Owner's Manual Using Codex with your ChatGPT plan |
| Training-data policySource code and prompts may contain proprietary logic, credentials, or regulated data. | Security and governance — Training-data policy: Amp does not clone or index an entire codebase on its server, but it stores threads and telemetry in a multi-tenant GCP environment. Enterprise provides zero data retention for LLM text inputs, SSO, directory sync, managed settings, visibility controls, and analytics APIs.Confirmed | Security and governance — Training-data policy: Codex combines OS-enforced local sandboxing, configurable approvals, default network restrictions, isolated cloud containers, and ChatGPT workspace controls. Data-training defaults depend on whether the user is on a consumer or business plan.Confirmed | Amp Security Reference Codex agent approvals and security |
| Local sandboxLocal sandboxing limits the damage of a mistaken or manipulated command on a developer machine. | Security and governance — Local sandbox: Amp does not clone or index an entire codebase on its server, but it stores threads and telemetry in a multi-tenant GCP environment. Enterprise provides zero data retention for LLM text inputs, SSO, directory sync, managed settings, visibility controls, and analytics APIs.Confirmed | Security and governance — Local sandbox: Codex combines OS-enforced local sandboxing, configurable approvals, default network restrictions, isolated cloud containers, and ChatGPT workspace controls. Data-training defaults depend on whether the user is on a consumer or business plan.Confirmed | Amp Security Reference Codex agent approvals and security |
| Cloud execution isolationCloud isolation determines whether agent tasks can access host systems or unrelated organizational data. | Security and governance — Cloud execution isolation: Amp does not clone or index an entire codebase on its server, but it stores threads and telemetry in a multi-tenant GCP environment. Enterprise provides zero data retention for LLM text inputs, SSO, directory sync, managed settings, visibility controls, and analytics APIs.Confirmed | Security and governance — Cloud execution isolation: Codex combines OS-enforced local sandboxing, configurable approvals, default network restrictions, isolated cloud containers, and ChatGPT workspace controls. Data-training defaults depend on whether the user is on a consumer or business plan.Confirmed | Amp Security Reference Codex agent approvals and security |
| Cloud-agent network defaultNetwork access enables dependency installation and research but increases prompt-injection and data-exfiltration risk. | Security and governance — Cloud-agent network default: Amp does not clone or index an entire codebase on its server, but it stores threads and telemetry in a multi-tenant GCP environment. Enterprise provides zero data retention for LLM text inputs, SSO, directory sync, managed settings, visibility controls, and analytics APIs.Confirmed | Security and governance — Cloud-agent network default: Codex combines OS-enforced local sandboxing, configurable approvals, default network restrictions, isolated cloud containers, and ChatGPT workspace controls. Data-training defaults depend on whether the user is on a consumer or business plan.Confirmed | Amp Security Reference Codex agent approvals and security |
| Command approvalsApproval policy controls how often an agent can act autonomously versus requiring a human checkpoint. | Security and governance — Command approvals: Amp does not clone or index an entire codebase on its server, but it stores threads and telemetry in a multi-tenant GCP environment. Enterprise provides zero data retention for LLM text inputs, SSO, directory sync, managed settings, visibility controls, and analytics APIs.Confirmed | Security and governance — Command approvals: Codex combines OS-enforced local sandboxing, configurable approvals, default network restrictions, isolated cloud containers, and ChatGPT workspace controls. Data-training defaults depend on whether the user is on a consumer or business plan.Confirmed | Amp Security Reference Codex agent approvals and security |
| SSO and SCIMIdentity federation and automated provisioning are required for reliable access removal and enterprise onboarding. | Security and governance — SSO and SCIM: Amp does not clone or index an entire codebase on its server, but it stores threads and telemetry in a multi-tenant GCP environment. Enterprise provides zero data retention for LLM text inputs, SSO, directory sync, managed settings, visibility controls, and analytics APIs.Confirmed | Security and governance — SSO and SCIM: Codex combines OS-enforced local sandboxing, configurable approvals, default network restrictions, isolated cloud containers, and ChatGPT workspace controls. Data-training defaults depend on whether the user is on a consumer or business plan.Confirmed | Amp Security Reference Codex agent approvals and security |
| Audit and policy controlsPolicy controls let security teams constrain repositories, models, tools, networks, and access while preserving an audit trail. | Security and governance — Audit and policy controls: Amp does not clone or index an entire codebase on its server, but it stores threads and telemetry in a multi-tenant GCP environment. Enterprise provides zero data retention for LLM text inputs, SSO, directory sync, managed settings, visibility controls, and analytics APIs.Confirmed | Security and governance — Audit and policy controls: Codex combines OS-enforced local sandboxing, configurable approvals, default network restrictions, isolated cloud containers, and ChatGPT workspace controls. Data-training defaults depend on whether the user is on a consumer or business plan.Confirmed | Amp Security Reference Codex agent approvals and security |
“Not publicly confirmed” means the reviewed first-party sources did not establish the capability. It does not mean “unsupported.” No star ratings, review counts, or paid rankings are used.
Editorial bottom line
Choose the workflow that fits the team
Both products can be relevant to AI-assisted software work. Compare the product form, available execution surfaces, documented workflow, pricing model, and governance requirements against the same repository task.
Choose Codex when
Choose Codex when developers who want the same coding agent in ChatGPT, an IDE, and the terminal.
Evaluate both when
Run the same representative repository task and compare output quality, review effort, execution surface, and governance requirements.
Cost scenarios
Compare pricing by workload, not sticker price
Free evaluation
Start with the documented free entry points before comparing paid usage.
Amp: Amp Free — interactive free credits exist, but new access is currently full and allowances may be paused or reduced
Codex: Codex is included across ChatGPT plans, including Free and Go, with limits that vary by plan
Run the same scoped task in both products and compare review effort, output quality, and limits before standardizing.Daily individual use
Compare the published individual entry and the documented usage model.
Amp: $5/credit purchase — Minimum pay-as-you-go credit purchase. Individuals and non-enterprise workspaces pay the underlying model and tool cost with zero markup and no subscription commitment. Credits are pooled within a workspace and expire after one year of account inactivity. Enterprise usage costs 50% more and starts with a one-time $1,000 usage purchase.
Codex: See official pricing. Codex usage draws from the plan's agentic usage and credit pool. The current rate card primarily maps model input, cached-input, and output tokens to credits.
Use actual workload data rather than treating plans with different usage units as directly equivalent.Governed engineering team
Evaluate governance, billing, identity, and deployment requirements alongside the seat or usage model.
Amp: See official pricing. Individuals and non-enterprise workspaces pay the underlying model and tool cost with zero markup and no subscription commitment. Credits are pooled within a workspace and expire after one year of account inactivity. Enterprise usage costs 50% more and starts with a one-time $1,000 usage purchase.
Codex: See official pricing. Codex usage draws from the plan's agentic usage and credit pool. The current rate card primarily maps model input, cached-input, and output tokens to credits.
Validate the exact plan and execution surface with both vendors before making a governance decision.Workflow fit
Recommendations by team scenario
Choose Amp for its documented primary workflow
Amp is positioned as Terminal-first, multi-model coding agent. Its source-reviewed guide is the right place to validate its detailed workflow, tradeoffs, and operating model.
Choose Codex for its documented primary workflow
Codex is positioned as Cross-surface coding agent and multi-agent command center. Its source-reviewed guide is the right place to validate its detailed workflow, tradeoffs, and operating model.
Run a governed pilot before standardizing
Product form alone is not enough for a governance decision. Review the official security, privacy, pricing, and execution documentation for the exact plan and deployment model.
FAQ
Questions about Amp and Codex
What is the main difference between Amp and Codex?
Amp is positioned as Terminal-first, multi-model coding agent. Codex is positioned as Cross-surface coding agent and multi-agent command center. The aligned matrix shows how those product forms map to surfaces, workflow, pricing, and governance evidence.
Does Amp or Codex have a free entry point?
Amp: Amp Free — interactive free credits exist, but new access is currently full and allowances may be paused or reduced Codex: Codex is included across ChatGPT plans, including Free and Go, with limits that vary by plan
How should a team evaluate Amp versus Codex?
Run the same representative repository task in both products, then compare the documented execution surface, review effort, output quality, usage limits, and required governance controls.
Which product is safer for private company code?
There is no universal answer. Review the official security, privacy, network, approval, identity, and audit documentation for the exact plan and execution surface your team will use.
Methodology and sources
Primary evidence behind the matrix
Each field is grounded in current first-party product, documentation, pricing, security, privacy, changelog, or help material.
- Amp Owner's Manual · verified 2026-07-12
- OpenAI Codex product overview · verified 2026-07-12
- Introducing the Codex app · verified 2026-07-12
- Using Codex with your ChatGPT plan · verified 2026-07-12
- Current Amp Free status · verified 2026-07-12
- Codex rate card · verified 2026-07-12
- Amp SDK overview · verified 2026-07-12
- Introducing upgrades to Codex · verified 2026-07-12
- Amp Plugin API · verified 2026-07-12
- Codex documentation · verified 2026-07-12
- Amp agents and remote control update · verified 2026-07-12
- Amp Security Reference · verified 2026-07-12
- Codex agent approvals and security · verified 2026-07-12
- OpenAI business data privacy · verified 2026-07-12
- SSO for ChatGPT Business · verified 2026-07-12
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Use the product guides below to widen the shortlist beyond Amp and Codex without losing the source-reviewed analysis format.
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