C
CGeneral-purpose AI chat assistant for writing, research, coding and everyday tasks
Free, from $8/mo
Claude vs OpenAI Codex
Pricing, features, platforms and who each one suits — side by side.
C
Choose Claude if…
- you work on Android, macOS, Windows
- you're in its core audience: knowledge workers, software developers
O
Choose OpenAI Codex if…
- you want the lower entry price ($8/mo vs $17/mo)
- you work on Slack
- you're in its core audience: software developers, engineering teams
Side by side
Feature Claude OpenAI Codex
Pricing modelFreemiumFreemium
Starting price$17/mo$8/mo
Free plan
Free trial
API
Open source
Security and compliance—SOC 2 Type II, ISO 27001, GDPR, HIPAA
Updates, last 90 days—5
PlatformsWeb, iOS, Android, macOS, Windows, Chrome, APIWeb, iOS, API, Slack
CategoryAI ChatbotsCode Assistants
CompanyAnthropic PBCOpenAI OpCo, LLC
Based inUnited StatesUnited States
Founded——
Part of——
Key features
C Claude
- Chat with web search and memory
- File creation and code execution
- Artifacts, Slides, Docs and Design tools
- Claude Code for software development
- Projects for organizing work
- Scheduled and handed-off tasks
- Chrome, Microsoft 365 and Google Workspace integrations
- Per-token API with batch discount
O OpenAI Codex
- Desktop app for local coding chats
- Command-line interface (CLI)
- IDE extension
- Cloud tasks through Codex on the web
- Automatic GitHub code review
- Slack integration
- SDK for scriptable workflows
- Works with an API key and pay-per-use billing
Plans and prices
From each vendor's site. Prices change — confirm before buying.
Claude
Free$0
Pro$20/mo or $17/mo billed yearly ($200)
MaxFrom $100/mo
Team Standard$25/seat/mo or $20/seat billed yearly
Team Premium$125/seat/mo or $100/seat billed yearly
Enterprise$20/seat billed yearly + usage at API rates
OpenAI Codex
Free$0/month
Go$8/month
Plus$20/month
ProFrom $100/month
Business$20/user/month billed annually; $25 billed monthly
Enterprise & EduContact sales
API KeyPay per usage
Strengths and limitations
Claude
- Free plan includes web search, code execution and memory
- Apps for web, desktop, iOS and Android
- Max plans include $100-$200/month in API credits
- Enterprise plan offers a HIPAA-ready option and a Compliance API
- Claude Code is not included in the free plan
- Max plans are billed monthly only
- Enterprise requires a 20-seat minimum
- API is billed separately from chat plans
OpenAI Codex
- Free plan includes basic Codex use in the desktop app
- Available in the desktop app, CLI, IDE, web, iOS and SDK
- Enterprise controls such as SCIM, RBAC, EKM and data residency
- API key option for pay-per-use billing
- Free and Go plans have no published usage numbers
- Plus usage limits are given only as estimated ranges
- API key use doesn't include cloud features such as code review or Slack
More comparisons
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CC
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C
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xAI's chat assistant for questions, writing and research, with free and paid tiers
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Built from each vendor's public website; we haven't tested them hands-on. Editorial policy