Claude Sonnet 4.6 vs GPT-5.4
GPT-5.4 reads a 26.2K-token pull request for $0.0655, 17% less than Claude Sonnet 4.6 ($0.0786). Above 272K tokens long-context rates apply, and Claude Sonnet 4.6 becomes the cheaper one. Both sit in the mid-range price tier, so the choice between them is about review quality more than budget.
Side by side
| Figure | Claude Sonnet 4.6 | GPT-5.4 |
|---|---|---|
| Price tier | Mid-range | Mid-range |
| Typical review calllist price | $0.1149 | $0.1018 (better) |
| Input / 1M tokens | $3.00 | $2.50 (better) |
| Output / 1M tokens | $15.00 | $15.00 |
| Context window | 1M | 1.1M |
- Above 272K tokens, long-context rates mean Claude Sonnet 4.6 is the cheaper of the two.
Not benchmarked yet
Claude Sonnet 4.6 and GPT-5.4 aren't benchmarked yet, so this page compares list prices only. Measured bugs caught, false alarms and a bug-by-bug comparison appear here once both have results.
See measured models