# Mistral Medium 3.5: API price, context window and how to connect

Mistral Medium 3.5 by Mistral AI: $1.5 per million input tokens, $7.5 per million output tokens, a 262K-token window. What it is good for, what to compare it with and how to connect it in SKILLOK.

## In short

A dense 128-billion-parameter Mistral AI model that follows instructions well. It accepts text and images and is designed for agentic workflows, code and complex tasks.

## Specifications

| | |
|---|---|
| Provider | [Mistral AI](https://skillok.org/docs/en/ai-models/providers/mistral) |
| Released | 2026-04-30 |
| Context window | 262K tokens |
| Accepts | text, images, files |
| Answers with | text |
| Reasoning mode | yes |
| Tool calling | yes |
| Open weights | no |
| Identifier | `mistralai/mistral-medium-3-5` |

## Price

| Per 1M tokens | In dollars |
|---|---|
| Input (question, context) | $1.5 |
| Output (answer) | $7.5 |

For reference: a conversation of 20 questions of ~500 tokens and answers of ~800 tokens costs about **$0.135**. Models in reasoning mode spend more tokens on an answer than the text shows: the reasoning is paid for too.

## What it is good for

* Instruction following
* Agentic workflows
* Work with images

## Similar models

Catalog models with the same kind of output, closest in the price of a typical request.

| Model | Input | Output | Window | Price |
|---|---|---|---|---|
| [Grok 4.7](https://skillok.org/docs/en/ai-models/models/grok-4-7) | $2 | $6 | 500K | about the same |
| [Kimi K3](https://skillok.org/docs/en/ai-models/models/kimi-k3) | $0.239 | $11.936 | 1.05M | 1.3× more expensive |
| [GPT-6.1 Sol](https://skillok.org/docs/en/ai-models/models/gpt-6-1-sol) | $2 | $10 | 1.05M | 1.3× more expensive |
| [GPT-6.1 Sol Pro](https://skillok.org/docs/en/ai-models/models/gpt-6-1-sol-pro) | $2 | $10 | 1.05M | 1.3× more expensive |
| [Claude Sonnet 5.5](https://skillok.org/docs/en/ai-models/models/claude-sonnet-5-5) | $2 | $10 | 1M | 1.3× more expensive |

## Other Mistral AI models

* [Mistral Large 4](https://skillok.org/docs/en/ai-models/models/mistral-large-4-0)
* [Mistral Small 4](https://skillok.org/docs/en/ai-models/models/mistral-small-2603)
* [Devstral 2 2512](https://skillok.org/docs/en/ai-models/models/devstral-2512)

## How to connect in SKILLOK

Mistral Medium 3.5 works through OpenRouter: add an OpenRouter key in **Settings → AI** and pick the `mistralai/mistral-medium-3-5` model. It then becomes available in Space AI, in tasks and to the repository agent. In detail — [Connecting a model in SKILLOK](https://skillok.org/docs/en/ai-models/connecting-in-skillok).

## Where the data comes from

Prices, the context window and capabilities come from the public OpenRouter catalog as of 2026-10-19. A provider may change the price — the exact figure is always on the model's OpenRouter page.

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https://skillok.org/docs/en/ai-models/models/mistral-medium-3-5