Compare/DeepSeek V3.1 Terminus (Reasoning) vs Mistral Medium 3.1

DeepSeek V3.1 Terminus (Reasoning)vsMistral Medium 3.1

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

DeepSeek

DeepSeek V3.1 Terminus (Reasoning)

Input
$0.4/M
Output
$2/M
Speed
TTFT
Mistral

Mistral Medium 3.1

Input
$0.4/M
Output
$2/M
Speed
75 tok/s
TTFT
0.39s

Winner by Category

Cheaper
Tie
Faster (tok/s)
Mistral Medium 3.1
Lower Latency
DeepSeek V3.1 Terminus (Reasoning)
Benchmarks (11-0)
DeepSeek V3.1 Terminus (Reasoning)

Pricing Comparison

MetricDeepSeek V3.1 Terminus (Reasoning)Mistral Medium 3.1
Input ($/M tokens)$0.4$0.4
Output ($/M tokens)$2$2
Cost for 1M input + 100K output tokens:
DeepSeek V3.1 Terminus (Reasoning)$0.60
Mistral Medium 3.1$0.60

Speed Comparison

Output Speed (tokens/s) — higher is better
DeepSeek V3.1 Terminus (Reasoning)
Mistral Medium 3.1
75 tok/s
Time to First Token (seconds) — lower is better
DeepSeek V3.1 Terminus (Reasoning)
Mistral Medium 3.1
0.39s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
33.921.3
Coding Index
33.718.3
Math Index
89.738.3
GPQA Diamond
79.2%58.8%
MMLU-Pro
85.1%68.3%
LiveCodeBench
79.8%40.6%
AIME 2025
89.7%38.3%
MATH-500
Humanity's Last Exam
15.2%4.4%
SciCode
40.6%33.8%
IFBench
57.0%39.8%
TerminalBench
30.3%10.6%
DeepSeek V3.1 Terminus (Reasoning)11 wins
0 winsMistral Medium 3.1

Frequently Asked Questions

Which is cheaper, DeepSeek V3.1 Terminus (Reasoning) or Mistral Medium 3.1?

Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.

Which model performs better on benchmarks?

DeepSeek V3.1 Terminus (Reasoning) wins 11 out of 12 benchmarks compared to 0 for Mistral Medium 3.1. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Mistral Medium 3.1 generates tokens faster at 75 tok/s vs 0 tok/s. DeepSeek V3.1 Terminus (Reasoning) also has lower time-to-first-token (0.00s vs 0.39s).

When should I use DeepSeek V3.1 Terminus (Reasoning) vs Mistral Medium 3.1?

Choose based on your priorities: both are similarly priced, DeepSeek V3.1 Terminus (Reasoning) for stronger benchmark performance, and Mistral Medium 3.1 for faster generation. For latency-sensitive apps, check the TTFT comparison above.