Compare/o3 vs Mistral Medium

o3vsMistral Medium

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

OpenAI

o3

Input
$2/M
Output
$8/M
Speed
99 tok/s
TTFT
6.84s
Mistral

Mistral Medium

Input
$2.75/M
Output
$8.1/M
Speed
67 tok/s
TTFT
0.44s

Winner by Category

Cheaper
o3
Faster (tok/s)
o3
Lower Latency
Mistral Medium
Benchmarks (12-0)
o3

Pricing Comparison

Metrico3Mistral Medium
Input ($/M tokens)$2$2.75
Output ($/M tokens)$8$8.1
Cost for 1M input + 100K output tokens:
o3$2.80
Mistral Medium$3.56

Speed Comparison

Output Speed (tokens/s) — higher is better
o3
99 tok/s
Mistral Medium
67 tok/s
Time to First Token (seconds) — lower is better
o3
6.84s
Mistral Medium
0.44s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
38.49.0
Coding Index
38.4
Math Index
88.3
GPQA Diamond
82.7%34.9%
MMLU-Pro
85.3%49.1%
LiveCodeBench
80.8%9.9%
AIME 2025
88.3%
MATH-500
99.2%40.5%
Humanity's Last Exam
20.0%3.4%
SciCode
41.0%11.8%
IFBench
71.4%
TerminalBench
37.1%
o312 wins
0 winsMistral Medium

Frequently Asked Questions

Which is cheaper, o3 or Mistral Medium?

o3 is cheaper overall. Its blended price (3:1 input/output ratio) is $3.50/M tokens vs $4.09/M for Mistral Medium.

Which model performs better on benchmarks?

o3 wins 12 out of 12 benchmarks compared to 0 for Mistral Medium. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

o3 generates tokens faster at 99 tok/s vs 67 tok/s. However, Mistral Medium has lower time-to-first-token (0.44s vs 6.84s).

When should I use o3 vs Mistral Medium?

Choose based on your priorities: o3 for lower cost, o3 for stronger benchmark performance, and o3 for faster generation. For latency-sensitive apps, check the TTFT comparison above.