Model comparison
GPT-5.4 vs Claude Sonnet 4.6
OpenAI
GPT-5.4
OpenAI's flagship — broadest modality and ecosystem coverage.
Anthropic
Claude Sonnet 4.6
The pragmatic default — Claude quality without Opus pricing.
Specs
| Metric | GPT-5.4 | Claude Sonnet 4.6 |
|---|---|---|
| Context window | 1.1M tokens↑ | 1M tokens |
| Input $/1M tokens | $2.50↑ | $3.00 |
| Output $/1M tokens | $15.00↑ | $15.00 |
| Modalities | Text · Image · File | Text · Image |
| Open weights | No | No |
Key differences
- —GPT-5.4 offers 1.1M context; Claude Sonnet 4.6 offers 1M.
- —Input pricing: GPT-5.4 at $2.50/1M vs Claude Sonnet 4.6 at $3.00/1M.