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Mistral Small 4 pricing & benchmarks

Mistral Small 4 is available from Mistral AI at $0.150 per million input tokens and $0.600 per million output tokens ($0.262 blended at 3:1). It accepts up to 262,144 tokens of context. 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...

Pricing
Per million tokens · OpenRouter
Input$0.150
Output$0.600
Blended (3:1)$0.262
Specification
mistralai/mistral-small-2603
Context window262K
Max output—
ReleasedMar 2026
LicenceOpen weights
Modalitiesin:text, in:image, out:text
No independently-run benchmark scores are published for Mistral Small 4 yet. We show nothing rather than reprinting an unverified figure.
Where to run Mistral Small 4
2 hosts · 1.3× between cheapest and dearest. Blended at 3:1. ⚠ marks an option serving less context than the best available, or re-pricing above a prompt-length threshold. Bracketed labels are the provider's own service tier or region.
HostBlended $/1MIn / OutContextWeightsUptime 24h
Mistral $0.262 $0.150 / $0.600 262K — 99.9%
Venice $0.328 $0.188 / $0.750 256K fp8 99.1%
Host prices and uptime from OpenRouter, synced 2026-08-08. Lower-precision weights (fp4, fp8) can cost less and score worse than the same model at bf16 — the score above is not host-specific.
Compare Mistral Small 4
Mistral Small 4 vs Qwen3.8 Max Mistral Small 4 vs DeepSeek V4 Flash 0731 Mistral Small 4 vs Claude Opus 5 Mistral Small 4 vs Gemini 3.6 Flash Mistral Small 4 vs Kimi K3 Mistral Small 4 vs GPT-5.6 Luna Mistral Small 4 vs GPT-5.6 Terra Mistral Small 4 vs GPT-5.6 Sol
FAQ
How much does Mistral Small 4 cost?
Mistral Small 4 costs $0.150 per million input tokens and $0.600 per million output tokens on OpenRouter. At a 3:1 input:output mix that blends to $0.262 per million tokens.
What is Mistral Small 4's context window?
Mistral Small 4 accepts up to 262,144 tokens of context.