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Leaderboard / Mistral AI

Mistral Medium 3

Mistral AI 2505 CLOSED Proprietary
Verdict

Mistral Medium 3 is a solid mid-pack model: #181 of 406 by SIscope score. Strongest at chat quality, weaker at math. Cheaper than 60% of priced models.

SIscope score
51
#181 of 406
Human-vote rank
#187
of 419 · score 1370
Price per 1M tokens, blended
$0.8
$0.4 in · $2 out
Context window
131K
131,072 tokens

Shape

Each spoke is a category, 0 at the centre, 100 at the edge.

CodingAgentsno data yetReasoningMathChatInstructions

Category scores

Percentiles: 90 means better than about 90% of tested models.

Coding55
Agents & toolsNo data yet–
Reasoning & knowledge53
Math47
Chat quality56
Following instructions53

What goes into each category · Compare with DeepSeek V4.1 Flash

Human-vote score over time

Text arena, recent updates.

136513701375Oct 20: 1370.2 (rank #185)Oct 22: 1370 (rank #186)Oct 28: 1370.1 (rank #187)Oct 20Oct 28

Independent test runs

Run by Epoch AI on the same harness for every model. Bars show the share of questions answered correctly.

No Epoch AI runs for this model yet.

Human-vote arenas

People compare two anonymous answers and pick the better one. Scores work like chess ratings.

ArenaRankScoreRange (95%)VotesUpdated
Text arena
Everyday chat, blind human votes
#187 of 41913701365–137532,777Oct 28, 2026
WebDev arena
Building web apps, blind human votes
Not on this board yet
Vision arena
Questions about images, blind human votes
#117 of 16711571149–116510,793Oct 19, 2026
Agent arena
Real multi-step agent sessions
Not on this board yet

Source: Arena (formerly LMArena) leaderboard dataset, CC BY 4.0. Fetched Nov 4, 2026.

Price

Input
$0.4
per 1M tokens
Output
$2
per 1M tokens
Blended
$0.8
3 in : 1 out, per 1M
Context window
131K
max tokens per request
Speed
Coming soon
our own tests

List price from the OpenRouter models API (mistralai/mistral-medium-3), Nov 4, 2026. Providers can charge differently.