Last refreshed 2026-05-14. Next refresh: weekly.
Why use Mistral Medium 3.5 on OpenRouter?
OpenRouter offers Mistral Medium 3.5 with pay-as-you-go pricing at $1.50/1M 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 Medium 3.5 across 2 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-medium-3-5mistralai/mistral-medium-3-5Request example
mistralai/mistral-medium-3-5.Gotchas
- Use provider model ID "mistralai/mistral-medium-3-5", not the LLMReference slug "mistral-medium-3.5".
Compare Mistral Medium 3.5 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Mistral AI Studio | $1.50 | $7.50 |
| OpenRouter | $1.50 | $7.50 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.50 |
| Output tokens | $7.50 |
| Image input | $1.00 |
Capabilities
About Mistral Medium 3.5
Mistral Medium 3.5 is Mistral AI's first flagship merged model, combining instruction-following, reasoning, coding, and vision in one dense 128B model. It supports configurable reasoning effort, text and image input, native function calling, JSON output, and a 256K context window. Released as open weights under Mistral's Modified MIT license, it can be self-hosted on as few as four H100/H200 GPUs and scores 77.6% on SWE-bench Verified.
FAQ
What does Mistral Medium 3.5 cost on OpenRouter?
On OpenRouter, Mistral Medium 3.5 costs $1.50 per 1M input tokens and $7.50 per 1M output tokens.
What is the context window for Mistral Medium 3.5 on OpenRouter?
Mistral Medium 3.5 supports a 262,144 token context window on OpenRouter.
How does OpenRouter compare to other Mistral Medium 3.5 providers?
Mistral Medium 3.5 is available from 2 providers. The cheapest input pricing is $1.50/1M tokens from Mistral AI Studio.
What API model ID do I use for Mistral Medium 3.5 on OpenRouter?
Use the model ID mistralai/mistral-medium-3-5 when calling OpenRouter's API.
Who created Mistral Medium 3.5?
Mistral Medium 3.5 was created by MistralAI as part of the Mistral Medium model family.
Is Mistral Medium 3.5 open source?
Mistral Medium 3.5 is open source according to the seed data.