GPT-5.1 Codex Max is the newer model, released after GPT-2.
| Spec | GPT-2 | GPT-5.1 Codex Max |
|---|---|---|
| Context window | 1K tokens | — |
| Released | Nov 2019 | Dec 2025 |
Not enough votes to call it. On the specs, GPT-5.1 Codex Max has the edge: bigger model tier, newer.
GPT-5.1 Codex Max uses 36.4x more hedging
GPT-5.1 Codex Max is the newer model, released after GPT-2.
| Spec | GPT-2 | GPT-5.1 Codex Max |
|---|---|---|
| Context window | 1K tokens | — |
| Released | Nov 2019 | Dec 2025 |
Not enough votes to call it. On the specs, GPT-5.1 Codex Max has the edge: bigger model tier, newer.
GPT-5.1 Codex Max uses 36.4x more hedging