GPT-5.5 vs DeepSeek R2: pricing, specs & reviews compared
Side-by-side comparison of GPT-5.5 (openai) and DeepSeek R2 (deepseek) — pricing per million tokens, context length, licensing, benchmarks and community reviews on Reviuws.
| Spec | GPT-5.5 | DeepSeek R2 |
|---|---|---|
| Provider | openai | deepseek |
| License | closed | open |
| Parameters | — | 236B |
| Context | 400k | 128k |
| Input price / M tok | $2.5 | — |
| Output price / M tok | $10 | — |
| Rating | 0.0 (0) | 0.0 (0) |