GPT-5.3-Codex is the newer model, released after Devstral 2 2512.
| Spec | Devstral 2 2512 | GPT-5.3-Codex |
|---|---|---|
| Input price | — | $1.75/M tokens |
| Output price | — | $14/M tokens |
| Context window | — | 400K tokens |
| Released | Dec 2025 | Feb 2026 |
Not enough votes to call it. On the specs, GPT-5.3-Codex has the edge: newer, bigger context window, major provider backing.
Devstral 2 2512 uses 6.4x more transitions
GPT-5.3-Codex is the newer model, released after Devstral 2 2512.
| Spec | Devstral 2 2512 | GPT-5.3-Codex |
|---|---|---|
| Input price | — | $1.75/M tokens |
| Output price | — | $14/M tokens |
| Context window | — | 400K tokens |
| Released | Dec 2025 | Feb 2026 |
Not enough votes to call it. On the specs, GPT-5.3-Codex has the edge: newer, bigger context window, major provider backing.
Devstral 2 2512 uses 6.4x more transitions