What is the context length of Mistral Medium 3.5?

Mistral Medium 3.5 has a 262,144 token context window.

Does Mistral Medium 3.5 support tool calling and structured outputs?

Yes. Mistral Medium 3.5 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

What inputs and outputs does Mistral Medium 3.5 support?

Mistral Medium 3.5 accepts text, images and files such as PDFs as input and returns text.

What other text models does Mistral AI have?

Mistral Small 4, Ministral 3 14B 2512, Ministral 3 8B 2512 and 14 more are other text models from Mistral AI.

When was Mistral Medium 3.5 released?

Mistral Medium 3.5 was released on April 30, 2026.

Mistral: Mistral Medium 3.5

Name: Mistral: Mistral Medium 3.5
Author: mistralai

mistralai/mistral-medium-3-5

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Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI. It supports text and image inputs with text output, and is designed for agentic workflows, coding, and complex multi-step reasoning. It is particularly strong at reliable multi-tool calling and long-horizon tasks, with a 256K context window, configurable reasoning effort per request, and a custom vision encoder that handles variable image sizes and aspect ratios. Self-hostable on as few as four GPUs and available under open weights.

Modalities

In / Out Price

$1.50 / $7.50per 1M

Context

262K

Released

Apr 30, 2026

About Mistral: Mistral Medium 3.5

OpenRouter makes Mistral: Mistral Medium 3.5 by Mistral AI available through a unified, OpenAI-compatible API using the model ID mistralai/mistral-medium-3-5. It is served by Mistral.

Mistral: Mistral Medium 3.5 accepts text, images and files such as PDFs and returns text. It has a 262,144-token context window.

On OpenRouter, Mistral: Mistral Medium 3.5 costs $1.50/M input tokens and $7.50/M output tokens. It was released on April 30, 2026.

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Providers

This model is hosted by one provider. OpenRouter forwards every request to it directly — no routing decisions to make.

Latency / throughput


	$1.50	$7.50	0.96s	55 tps	99.96%

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Uptime (3d)

100.00%

Availability (3d)

99.80%

Availability over the last 3 days

Last 72 hours

Availability 99.80%

3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability

99.78%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and customization options.

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