Model comparison
Claude Sonnet 4.6 vs GPT-5.4
Anthropic
Claude Sonnet 4.6
The pragmatic default - Claude quality without Opus pricing.
OpenAI
GPT-5.4
OpenAI's flagship - broadest modality and ecosystem coverage.
Specs
| Metric | Claude Sonnet 4.6 | GPT-5.4 |
|---|---|---|
| Context window | 1M tokens | 1.1M tokens↑ |
| Input $/1M tokens | $3.00 | $2.50↑ |
| Output $/1M tokens | $15.00↑ | $15.00 |
| Modalities | Text · Image · File | Text · Image · File |
| Open weights | No | No |
| Released | - | Mar 2026 |
Key differences
- -Claude Sonnet 4.6 offers 1M context; GPT-5.4 offers 1.1M.
- -Input pricing: Claude Sonnet 4.6 at $3.00/1M vs GPT-5.4 at $2.50/1M.