Last refreshed 2026-06-15. Next refresh: weekly.
Why use Mistral Small 4 on OpenRouter?
OpenRouter offers Mistral Small 4 with pay-as-you-go pricing at $0.15/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare Mistral Small 4 across 3 providers to find the best fit for your use caseInput / 1M
$0.15
Output / 1M
$0.60
Cache
Not sourced
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: mistralai/mistral-small-2603Model ID
mistralai/mistral-small-2603Request example
Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID
mistralai/mistral-small-2603.Gotchas
- Use provider model ID "mistralai/mistral-small-2603", not the LLMReference slug "mistral-small-4".
Compare Mistral Small 4 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenRouter | $0.15 | $0.60 |
| NVIDIA NIM | — | — |
| Mistral AI Studio | $0.10 | $0.30 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.15 |
| Output tokens | $0.60 |
Capabilities
VisionMultimodalJSON / Tool use
About Mistral Small 4
Mistral Small 4 is a hybrid 119B MoE model unifying instruct, reasoning, and coding capabilities. Features configurable reasoning effort per request and native function calling with JSON output support.
Get Started
Model Specs
Released2026-03-16
Parameters119B (6.5B active)
Context256k
ArchitectureMixture of Experts
Knowledge cutoff2025-06