FinderAtlas
Sign in

Amp vs OpenAI Codex

Features, pricing, ratings, and pros and cons, side by side.

OpenAI Codex logo

OpenAI Codex

OpenAI's coding agent that writes, reviews and runs code from terminal, IDE, desktop or cloud

Freemium
Visit websiteView details

Verdict

Amp and OpenAI Codex are both Coding AI tools. OpenAI Codex scores higher in FinderAtlas's editorial review (8.5 vs 7.9 out of 10), led by ease of use and value for money. Both have a free plan or trial. Only OpenAI Codex is available on VS Code Extension and JetBrains Plugin.

Best overall

OpenAI Codex

  • Software developers
  • Engineering teams
  • Enterprise engineering organizations
  • Open-source maintainers

Choose Amp if

  • You want a tool built for Long-running agent tasks that continue unattended, parallel agent threads without managing worktrees, teams sharing an agent session.
  • Per-thread cloud orbs let agents keep running unattended without worktree or port conflicts.
  • Free Hobby tier includes all product features, with bring-your-own-key and own-runner options.

Choose OpenAI Codex if

  • You want a tool built for delegating coding tasks to an agent.
  • Included with ChatGPT plans, with a free tier and an $8 Go tier.
  • Open-source CLI under the Apache-2.0 license.
Best for beginners
Amp
Best for business
Amp

Features

19 features compared.

  • Orbs
    Amp
    Available
    OpenAI Codex
    Not available
  • Portals
    Amp
    Available
    OpenAI Codex
    Not available
  • Event-driven wake-ups
    Amp
    Available
    OpenAI Codex
    Not available
  • Multiplayer
    Amp
    Available
    OpenAI Codex
    Not available
  • Changes tab
    Amp
    Available
    OpenAI Codex
    Not available
  • The Dial
    Amp
    Available
    OpenAI Codex
    Not available
  • Puck
    Amp
    Available
    OpenAI Codex
    Not available
  • CLI and runners
    Amp
    Available
    OpenAI Codex
    Not available
  • amp sync
    Amp
    Available
    OpenAI Codex
    Not available
  • Codex CLI
    Amp
    Not available
    OpenAI Codex
    Available
  • IDE extension
    Amp
    Not available
    OpenAI Codex
    Available
  • Desktop app
    Amp
    Not available
    OpenAI Codex
    Available
  • Cloud tasks
    Amp
    Not available
    OpenAI Codex
    Available
  • Code review
    Amp
    Not available
    OpenAI Codex
    Available
  • Non-interactive mode
    Amp
    Not available
    OpenAI Codex
    Available
  • MCP, skills and plugins
    Amp
    Not available
    OpenAI Codex
    Available
  • Subagents and web search
    Amp
    Not available
    OpenAI Codex
    Available
  • Session resume and images
    Amp
    Not available
    OpenAI Codex
    Available
  • Mobile remote control
    Amp
    Not available
    OpenAI Codex
    Available

Pricing

Plans as listed by each vendor. Check their sites for current prices.

  • Pricing model
    Amp
    Freemium
    OpenAI Codex
    Freemium
  • Free plan
    Amp
    Yes
    OpenAI Codex
    Yes
  • Starting price
    Amp
    $0
    OpenAI Codex
    $0
  • Plans
    Amp
    4 plans
    OpenAI Codex
    7 plans

Amp plans

  • Hobby

    $0

    Free tier with all product features

    • Pay-as-you-go orbs
    • free own runners
    • bring your own keys
    • public and private repositories

  • Individual (Megawatt)

    $20/month

    Paid individual tier with included orb time

    • 45,000 minutes of orb time
    • bring your own keys
    • no Amp token fees or limits
    • custom domains for portals
    • sticker pack

  • Teams

    $0/user/mo

    No extra charge; members hold Hobby, Megawatt or Gigawatt tiers

    • Thread sharing
    • multiplayer
    • permissions
    • shared portals
    • plugins and skills
    • user analytics
    • pooled credits
    • SAML/OIDC SSO

  • Enterprise

    Custom/custom

    Pooled credits for large organizations

    • SCIM sync
    • spend limits
    • audit logs
    • MCP access controls
    • IP allowlisting
    • regional endpoints
    • priority support

OpenAI Codex plans

  • Free

    $0

    Quick coding tasks

    • GPT-6 Luna in the desktop app
    • Subject to rollout

  • Go

    $8/month

    Lightweight coding tasks

    • GPT-6 Luna in the desktop app

  • Plus

    Most popular

    $20/month

    Focused coding sessions

    • Web
    • CLI
    • IDE and iOS access
    • Automatic code review and Slack
    • GPT-6.1 Sol and GPT-6 Luna
    • Can add credits

  • Pro

    $100/month

    Plans at $100, $200 or $500 per month

    • Everything in Plus
    • No five-hour limit currently
    • Ultrafast mode on the $500 plan

  • Business

    $25/user/mo

    2 or more users; $20 per user per month when billed annually

    • Desktop and mobile apps
    • Larger cloud VMs
    • Add-on credits
    • SAML SSO and MFA
    • No training on business data by default

  • Enterprise & Edu

    Custom/user/mo

    Contact sales

    • Priority request processing
    • SCIM
    • EKM and RBAC
    • User analytics
    • Compliance API audit logs
    • Retention and residency controls

  • API Key

    Pay-as-you-go/usage

    Billed at OpenAI API pricing

    • Codex in the CLI
    • SDK and IDE extension
    • No cloud features
    • Models depend on the API key

Our ratings

Scored out of 10 by the Finder Atlas editorial team. Last reviewed October 2026.

Amp
7.9overall
OpenAI Codex
8.5overall

Amp leads in 0 categories and OpenAI Codex in 2.

  • Ease of Use

    OpenAI Codex leads by 0.8
    Amp
    7.5
    OpenAI Codex
    8.3

  • Feature Depth

    Amp
    8.5
    OpenAI Codex
    Not rated

  • Value for Money

    OpenAI Codex leads by 0.5
    Amp
    7.5
    OpenAI Codex
    8.0

  • Performance & Speed

    Amp
    8.0
    OpenAI Codex
    Not rated

  • Documentation & Support

    Amp
    8.0
    OpenAI Codex
    Not rated

  • Code Generation

    Amp
    Not rated
    OpenAI Codex
    9.0

  • Agentic Autonomy

    Amp
    Not rated
    OpenAI Codex
    8.8

  • Ecosystem & Integrations

    Amp
    Not rated
    OpenAI Codex
    8.5

Scores weigh documented features, plan value, platform coverage, integrations and user feedback. A missing score means we have not rated that area yet.

Pros and cons

Amp

Pros

  • Per-thread cloud orbs let agents keep running unattended without worktree or port conflicts.
  • Free Hobby tier includes all product features, with bring-your-own-key and own-runner options.
  • Works across web, Mac, terminal and CI runners, with event triggers from Linear, GitHub and schedules.
  • Multiplayer orbs let teammates share an agent, terminal and running app.
  • Teams plan adds SSO, pooled credits and shared model routing at no extra seat charge.

Cons

  • The Mac app requires macOS 26 or later and the Mac and iOS apps are labelled beta.
  • No App Store iOS release yet; mobile access is through TestFlight.
  • Orb rates, overage behaviour and Gigawatt pricing are not published on the pricing page.
  • Pay-as-you-go orbs on the free tier make costs less predictable than a flat subscription.

OpenAI Codex

Pros

  • Included with ChatGPT plans, with a free tier and an $8 Go tier
  • Open-source CLI under the Apache-2.0 license
  • Available in the terminal, VS Code-based editors, the ChatGPT desktop app and the cloud
  • Supports MCP, skills, plugins and subagents
  • API-key option lets teams pay at API rates instead of a subscription

Cons

  • Plus has message limits per five hours that vary widely by model
  • Cloud features are not available on the API Key plan
  • Higher usage needs Pro, which starts at $100 per month
  • Free and Go plans offer only GPT-6 Luna in the desktop app

Platforms

  • Web
    Amp
    Supported
    OpenAI Codex
    Supported
  • Windows
    Amp
    Supported
    OpenAI Codex
    Supported
  • macOS
    Amp
    Supported
    OpenAI Codex
    Supported
  • iOS
    Amp
    Not supported
    OpenAI Codex
    Not supported
  • Android
    Amp
    Not supported
    OpenAI Codex
    Not supported
  • API
    Amp
    Supported
    OpenAI Codex
    Supported
  • Browser Extension
    Amp
    Not supported
    OpenAI Codex
    Not supported
  • Linux
    Amp
    Supported
    OpenAI Codex
    Supported
  • CLI
    Amp
    Supported
    OpenAI Codex
    Supported
  • VS Code Extension
    Amp
    Not supported
    OpenAI Codex
    Supported
  • JetBrains Plugin
    Amp
    Not supported
    OpenAI Codex
    Supported

Integrations

Amp

11 integrations
  • Linear
  • GitHub
  • Slack
  • MCP
  • VS Code
  • Cursor
  • Windsurf
  • Zed
  • Neovim
  • ChatGPT subscription
  • Claude subscription

OpenAI Codex

8 integrations
  • GitHub
  • Slack
  • Visual Studio Code
  • Cursor
  • Windsurf
  • Xcode
  • JetBrains IDEs
  • MCP

Company

  • Company
    Amp
    Amp Frontier Corporation
    OpenAI Codex
    Not listed
  • Founded
    Amp
    2025
    OpenAI Codex
    Not listed
  • Headquarters
    Amp
    San Francisco, CA
    OpenAI Codex
    Not listed
  • Monthly users
    Amp
    Not listed
    OpenAI Codex
    4M+ weekly users
  • Listing
    Amp
    Claimed
    OpenAI Codex
    Not claimed

Frequently asked questions

Is Amp better than OpenAI Codex?

It depends on your workflow. Amp is built for Long-running agent tasks that continue unattended, parallel agent threads without managing worktrees, teams sharing an agent session. OpenAI Codex is built for delegating coding tasks to an agent.

What are the key feature differences between Amp and OpenAI Codex?

Amp: Coding agent that runs in cloud orbs and keeps working after you close your laptop. OpenAI Codex: OpenAI's coding agent that writes, reviews and runs code from terminal, IDE, desktop or cloud.

Does Amp or OpenAI Codex have a free plan?

Yes, both do. Amp is freemium and OpenAI Codex is freemium, and each has a free plan or trial.

Which is cheaper, Amp or OpenAI Codex?

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.