Claude Code vs Codex usage limits (October 2026)
Last checked 2026-10-25 against each vendor's pricing page. Every value below links to its source.
Short answer
Both start at $20/mo. At that tier only Codex publishes numbers (GPT-6.1 Sol 15-160 · GPT-6 Sol 15-150 · GPT-6 Astra 5-45 · GPT-6 Luna 350-3,000 local messages per 5 hours). Anthropic gives no hard count: "Pro gives you at least 5x more usage per 5-hour session than Free." At $100 and $200, Codex says "Pro plans currently have no five-hour limit." while Claude Max is 5x or 20x Pro per 5-hour session.
| Tool | Plan | Price | Usage limit | Source |
|---|---|---|---|---|
| Claude Code (Claude Pro / Max) | Pro | $20/mo | At least 5x Free usage per 5-hour session; weekly limits applyvague | Claude Code pricing checked 2026-10-25 |
| OpenAI Codex (ChatGPT plans) | Plus | $20/mo | Per 5 hours (local msgs, estimates): GPT-6.1 Sol 15-160, GPT-6 Sol 15-150, GPT-6 Astra 5-45, GPT-6 Luna 350-3,000 Vendor estimate, local messages per 5 hours: GPT-6.1 Sol 15-160 · GPT-6 Sol 15-150 · GPT-6 Astra 5-45 · GPT-6 Luna 350-3,000 | Codex pricing checked 2026-10-25 |
| Claude Code (Claude Pro / Max) | Max 5x | $100/mo | 5x Pro usage per 5-hour session; includes $100/month API creditsvague | Claude Code pricing checked 2026-10-25 |
| OpenAI Codex (ChatGPT plans) | Pro $100 | $100/mo | 'Pro plans currently have no five-hour limit'; weekly allowance not publishedvague | Codex pricing checked 2026-10-25 |
| Claude Code (Claude Pro / Max) | Max 20x | $200/mo | 20x Pro usage per 5-hour session; includes $200/month API creditsvague | Claude Code pricing checked 2026-10-25 |
| OpenAI Codex (ChatGPT plans) | Pro $200 | $200/mo | No five-hour limit currently; weekly allowance not publishedvague | Codex pricing checked 2026-10-25 |
How Claude Code limits work
Rolling 5-hour session window plus weekly limits on paid plans; shared pool across chat and Claude Code.
sourceHow Codex limits work
Shared allowance with ChatGPT Work; 5-hour window on Plus (Pro currently none), weekly limits may apply.
sourceFull plan-by-plan detail: Claude Code vs Codex limits and pricing.
FAQ
Does Codex Pro have a five-hour limit?
Pro plans currently have no five-hour limit. (OpenAI Codex pricing, checked 2026-10-25)
How much usage does Claude Pro include for Claude Code?
Pro gives you at least 5x more usage per 5-hour session than Free. Anthropic publishes no fixed message count (checked 2026-10-25).