Side-by-side comparison of pricing, 12 benchmarks, and generation speed.
| Metric | Mistral Medium 3.5 | o3 |
|---|---|---|
| Input ($/M tokens) | $1.5 | $2 |
| Output ($/M tokens) | $7.5 | $8 |
Data from Artificial Analysis API — 12 benchmarks
Mistral Medium 3.5 is cheaper overall. Its blended price (3:1 input/output ratio) is $3.00/M tokens vs $3.50/M for o3.
o3 wins 11 out of 12 benchmarks compared to 1 for Mistral Medium 3.5. See the detailed benchmark chart above for per-category results.
Mistral Medium 3.5 generates tokens faster at 163 tok/s vs 74 tok/s. Mistral Medium 3.5 also has lower time-to-first-token (0.53s vs 8.58s).
Choose based on your priorities: Mistral Medium 3.5 for lower cost, o3 for stronger benchmark performance, and Mistral Medium 3.5 for faster generation. For latency-sensitive apps, check the TTFT comparison above.