Claude Sonnet 4.6 vs GPT-5.4
Both models are evenly matched
Arena ELO
GPT-5.4
Cheaper
Tie
Faster
Claude Sonnet 4.6
Detailed Comparison
| Category | Claude Sonnet 4.6 | GPT-5.4 |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context Window | 1M | 1M |
| Input Price ($/1M) | $3 | $3 |
| Output Price ($/1M) | $15 | $15 |
| Arena ELO | 1440 | 1560 WIN |
| Coding | 79.6% SWE-bench | unknown |
| Reasoning | 72.5% OSWorld | unknown |
| Speed (tokens/sec) | ~80 t/s WIN | ~50 t/s |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Claude Sonnet 4.6 or GPT-5.4?
GPT-5.4 is approximately 0% cheaper than Claude Sonnet 4.6 per million tokens.
Which is better for coding, Claude Sonnet 4.6 or GPT-5.4?
Claude Sonnet 4.6 scores 79.6% SWE-bench on coding benchmarks, while GPT-5.4 scores unknown.
Which has a larger context window?
Claude Sonnet 4.6 supports 1M context, while GPT-5.4 supports 1M.
Is Claude Sonnet 4.6 or GPT-5.4 open source?
Claude Sonnet 4.6 is proprietary. GPT-5.4 is proprietary.
Which ranks higher on the Chatbot Arena leaderboard?
GPT-5.4 ranks higher with ELO 1560 vs 1440.
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