Mistral: Mistral Small 4

Mistral: Mistral Small 4

mistralai · Released Mar 16, 2026 Specialist
Intelligence #111 / 556
57.9 Our Score
Speed #44 / 257
169.0 tokens / sec
Input #239 / 557
$0.150 per 1M tokens
Output #261 / 557
$0.600 per 1M tokens
Context #98 / 557
262,144 tokens

Analysis Summary

Mistral: Mistral Small 4 sits in the Specialist tier on our leaderboard, ranked #111 of 556 published models on overall intelligence. At $0.150 input and $0.600 output per 1M tokens, it is among the most expensive on the market. It offers a generous context window for extended reasoning and code review and supports tool use, function calling, and vision.

Editorial notes

Mistral Small 4 offers vision, tool use, and a 262K context at $0.15 input per million tokens, but its intelligence index of 27.8 limits it to lighter content and instruction tasks.

Assessed May 14, 2026

Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?

Performance Profile

Intelligence5Technical4.2Value8Content5.5
Intelligence 5/10
Technical 4.2/10
Content 5.5/10
Value 8/10

Mistral Small 4 is the next major release in the Mistral Small family, unifying the capabilities of several flagship Mistral models into a single system. It combines strong reasoning from..

Capabilities

Tool Use Function Calling Vision

Performance Indices

Source: Artificial Analysis

27.8 Intelligence Index
24.3 Coding Index
29.3 Agentic Index

Benchmark Scores

Intelligence

GPQA Diamond 76.9% Graduate-level scientific reasoning
HLE 9.5% Humanity's Last Exam
SciCode 38% Scientific computing

Technical

TerminalBench Hard 17.4% Agentic terminal tasks
τ²-Bench 41.2% Conversational agent benchmark

Content

IFBench 48.2% Instruction following
LCR 44.7% Long-context reasoning

Benchmark data from Artificial Analysis and Hugging Face

How does Mistral: Mistral Small 4 stack up?

Compare side-by-side with other specialist models.

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Model Information

OpenRouter ID mistralai/mistral-small-2603
Providermistralai
Model FamilyMistral
Release Date March 16, 2026
Context Length262,144 tokens
Status Active

Pricing

Token Type Cost per 1M tokens Cost per 1K tokens
Input $0.15 $0.000150
Output $0.60 $0.000600

Live Performance

Live endpoint metrics — refreshed every 30 minutes.

100%
Avg Uptime
497ms
Best Latency (TTFT)
136 tok/s
Best Throughput
1/2
Active Endpoints
Available via: Mistral, Venice

Leaderboard Categories