GPT-5.1 Codex Max is the newer model, released after DeepSeek Prover V2.
| Spec | DeepSeek Prover V2 | GPT-5.1 Codex Max |
|---|---|---|
| Input price | Free | — |
| Output price | Free | — |
| Context window | 164K tokens | — |
| Released | Apr 2025 | Dec 2025 |
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.1 Codex Max uses 36.4x more hedging
GPT-5.1 Codex Max is the newer model, released after DeepSeek Prover V2.
| Spec | DeepSeek Prover V2 | GPT-5.1 Codex Max |
|---|---|---|
| Input price | Free | — |
| Output price | Free | — |
| Context window | 164K tokens | — |
| Released | Apr 2025 | Dec 2025 |
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.1 Codex Max uses 36.4x more hedging