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 caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: mistralai/mistral-small-2603mistralai/mistral-small-2603Request example
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
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.
FAQ
What does Mistral Small 4 cost on OpenRouter?
On OpenRouter, Mistral Small 4 costs $0.15 per 1M input tokens and $0.6 per 1M output tokens.
What is the context window for Mistral Small 4 on OpenRouter?
Mistral Small 4 supports a 262k token context window on OpenRouter.
How does OpenRouter compare to other Mistral Small 4 providers?
Mistral Small 4 is available from 3 providers. The cheapest input pricing is $0.10/1M tokens from Mistral AI Studio.
What API model ID do I use for Mistral Small 4 on OpenRouter?
Use the model ID mistralai/mistral-small-2603 when calling OpenRouter's API.
Who created Mistral Small 4?
Mistral Small 4 was created by MistralAI as part of the Mistral Small model family.
Is Mistral Small 4 open source?
Mistral Small 4 is open source under Apache 2.0 according to the seed data.