GPT-5.1 Codex Max is the newer model, released after Gemini 3 Pro Preview.
| Spec | Gemini 3 Pro Preview | GPT-5.1 Codex Max |
|---|---|---|
| Released | Nov 2025 | Dec 2025 |
| SWE-bench Verified | 76.2% | 77.9% |
Not enough votes to call it. On the specs, Gemini 3 Pro Preview has the edge.
Gemini 3 Pro Preview wins Reasoning and Web Design.
Gemini 3 Pro Preview uses 9.7x more transitions
GPT-5.1 Codex Max is the newer model, released after Gemini 3 Pro Preview.
| Spec | Gemini 3 Pro Preview | GPT-5.1 Codex Max |
|---|---|---|
| Released | Nov 2025 | Dec 2025 |
| SWE-bench Verified | 76.2% | 77.9% |
Not enough votes to call it. On the specs, Gemini 3 Pro Preview has the edge.
Gemini 3 Pro Preview wins Reasoning and Web Design.
Gemini 3 Pro Preview uses 9.7x more transitions