Values are comparable only within the scope shown. Runtime, plan, model, invocation mode, and account-specific capacity can change the effective result.
Quick comparison
| Criterion | Codex | Claude Code | Comparability note |
|---|---|---|---|
| Entry paid-plan estimate | Codex10–2,000 messages per 5 hours, depending on modelChatGPT PlusOpenAI | Claude CodeApproximately 10–40 prompts every 5 hoursProAnthropic | Codex spans several models; Claude Code's range depends on repository and task complexity. |
| Reset and shared scope | Codex10–2,000 messages per 5 hours, depending on modelChatGPT PlusOpenAI | Claude CodeResets every 5 hours; shared with ClaudePro and MaxAnthropic | Both use five-hour windows, but their sharing rules and additional weekly controls differ. |
Which is best for your requirement?
Choose Codex when
Its documented entry paid-plan estimate scope fits your measured workload and the caveats shown in the comparison.
Choose Claude Code when
Its documented execution or account model better matches the exact requirement rather than a vendor-wide headline.
Validate before migration
Test payload, duration, throughput, concurrency, failure behavior, billing scope, and recovery with representative traffic.
Validate the decision with your workload
Before choosing between Codex and Claude Code, reproduce the comparison with the exact plans, models, regions, runtimes, and invocation paths you intend to operate. The reviewed rows cover entry paid-plan estimate and reset and shared scope; they do not turn different pricing, reliability, developer experience, or ecosystem tradeoffs into one universal score.
- Capture representative request sizes, token usage, duration, concurrency, storage, and failure behavior at realistic percentiles.
- Test the boundary and the recovery path on both candidates, including throttling, timeouts, partial failure, retries, and cost controls.
- Record which scoped observation drove the choice and recheck its official source before migration or a major traffic increase.
Official sources
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