GPT-5.1 Codex Max is the newer model, released after Quasar Alpha.
| Spec | GPT-5.1 Codex Max | Quasar Alpha |
|---|---|---|
| Context window | — | 1.0M tokens |
| Released | Dec 2025 | Apr 2025 |
Not enough votes to call it. On the specs, GPT-5.1 Codex Max has the edge: bigger model tier, newer, major provider backing.
GPT-5.1 Codex Max is the newer model, released after Quasar Alpha.
| Spec | GPT-5.1 Codex Max | Quasar Alpha |
|---|---|---|
| Context window | — | 1.0M tokens |
| Released | Dec 2025 | Apr 2025 |
Not enough votes to call it. On the specs, GPT-5.1 Codex Max has the edge: bigger model tier, newer, major provider backing.