Mistral Medium 3.1 | Epoch AI

ECI

N/A

Mistral AI

Aug. 12, 2025

Closed weights

Mistral Medium 3.1 is a closed-weights model from Mistral AI, released August 12, 2025.

Input price—

Output price—

ParametersUnknown

Training computeUnknown

Mistral Medium 3.1 vs select alternatives

Domain	Benchmark	Mistral Medium 3.1 Mistral AI Aug. 12, 2025 Closed weights	GPT-5 OpenAI Aug. 7, 2025 Closed weights	Grok 4 xAI Jul. 9, 2025 Closed weights	Gemini 2.5 Pro (Jun 2025) Google DeepMind Jun. 5, 2025 Closed weights
Conceptual reasoning	LMCABest score 63.3	19.1	40.0	—	34.8
	DTBenchBest score 98.4%	67.5%	90.7%	n/a	82.4%
Science	CritPtBest score 32.3%	0.0%	12.6%	n/a	2.0%
	SciCodeBest score 62.0%	33.8%	42.9%	n/a	42.8%
Software engineering	ALE-BenchBest score 2176.9	210.2	1162.5	—	785.5
	WeirdML (v2)Best score 92.9%	33.1%	60.7%	45.7%	54.0%

Model metadata

General
Organization	Mistral AI
Release date	Aug. 12, 2025
Model accessibility	Closed weights
Country	France
Knowledge cutoff	Unknown
Provider notes	x.com

Pricing
Input price	—
Output price	—

Training
Parameters	Unknown
Training compute	Unknown
Training hardware	Unknown
Training time	Unknown
Training dataset size	Unknown