Claude Sonnet 5 vs GPT-5.5: pricing, specs & reviews compared
Side-by-side comparison of Claude Sonnet 5 (anthropic) and GPT-5.5 (openai) — pricing per million tokens, context length, licensing, benchmarks and community reviews on Reviuws.
| Spec | Claude Sonnet 5 | GPT-5.5 |
|---|---|---|
| Provider | anthropic | openai |
| License | closed | closed |
| Parameters | — | — |
| Context | 1000k | 400k |
| Input price / M tok | $3 | $5 |
| Output price / M tok | $15 | $30 |
| Rating | 0.0 (0) | 0.0 (0) |