---
id: "mistralai/mistral-small-2603"
also: ["mistralai/mistral-small-2603", "mistralai/Mistral-Small-4-119B-2603", "requesty/mistral/mistral-small-2603"]
card_usd_per_m: "0.15 in, 0.6 out, at mistral"
cheapest_list_usd_per_m: "0.15 in, 0.6 out, at mistral on openrouter"
cheapest_effective_usd_per_m: "0.0682 in, 0.5973 out, at mistral/zdr on openrouter"
context: 262144
max_output: 209715
input: ["text", "image"]
output: ["text"]
released: "2026-03-16"
reasoning: ["high", "none"]
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["frequency_penalty", "include_reasoning", "max_tokens", "presence_penalty", "reasoning", "reasoning_effort", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "top_k", "top_p"]
endpoints: 6
gateways: "openrouter (5), requesty (1)"
no_training: 6
trains: 0
retains_prompts: 1
intelligence: 4.3000
coding: 26.6000
agentic: 0.8000
---
# Mistral: Mistral Small 4

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...