Updated March 26, 2026· Based on independent benchmark data
GPT-5.3 Codex (xhigh) leads in intelligence with a score of 54.0 vs 19.5. For speed, Devstral Small 2 wins at 193 tok/s vs 72 tok/s.
| Metric | Devstral Small 2 | GPT-5.3 Codex (xhigh) |
|---|---|---|
| Intelligence Score | 19.5 | 54.0 |
| Coding Score | 20.7 | 53.1 |
| Math Score | 34.3 | N/A |
| Speed (tok/s) | 193 tok/s | 72 tok/s |
| Latency (TTFT) | 0.34s | 83.91s |
| Input Price / 1M tokens | Free | $1.75 |
| Output Price / 1M tokens | Free | $14 |
| Context Window | N/A | N/A |
| Max Output Tokens | N/A | N/A |
| Input Modalities | Text | Text |
GPT-5.3 Codex (xhigh) outperforms Devstral Small 2 on the intelligence index with a score of 54.0 compared to 19.5. For coding tasks, GPT-5.3 Codex (xhigh) has the edge with a coding score of 53.1 vs 20.7.
Devstral Small 2 generates output significantly faster at 193 tok/s compared to GPT-5.3 Codex (xhigh)'s 72 tok/s, making it 2.7x faster for streaming responses. Time to first token is 0.34s for Devstral Small 2 vs 83.91s for GPT-5.3 Codex (xhigh), which affects perceived responsiveness in interactive applications.
Devstral Small 2 is completely free, while GPT-5.3 Codex (xhigh) costs $1.75/1M input tokens and $14/1M output tokens.
Choose Devstral Small 2 when you need faster output (193 tok/s). Choose GPT-5.3 Codex (xhigh) when you need higher intelligence (54.0), stronger coding performance (53.1).
GPT-5.3 Codex (xhigh) scores higher on coding benchmarks (53.1 vs 20.7), making it the better choice for programming tasks.
Devstral Small 2 is faster, producing output at 193 tok/s compared to GPT-5.3 Codex (xhigh)'s 72 tok/s.
No, Devstral Small 2 does not support image input. Neither model supports image input.
It depends on your priorities. GPT-5.3 Codex (xhigh) scores higher on intelligence (54.0), but Devstral Small 2 may be better for specific use cases like cost savings or speed-critical applications.
Data last synced: March 26, 2026
| Output Modalities | Text | Text |
| Free Tier | Yes | No |