# Mistral Medium 3.5 128B API Pricing

As of October 10, 2026, Mistral Medium 3.5 128B costs $1.50 per 1M input tokens and $7.50 per 1M output tokens on Scaleway. It has a 256,000-token context window and returns up to 16,384 tokens per response.

- Page: https://models.litellm.ai/models/mistral-medium-3.5-128b
- Lab: Mistral AI
- LiteLLM model name: `scaleway/mistralai/mistral-medium-3.5-128b`
- Context window: 256,000 tokens
- Max output: 16,384 tokens
- Added to LiteLLM: June 2026
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Scaleway | `scaleway/mistralai/mistral-medium-3.5-128b` | $1.50 | $7.50 | – | – | – | 256K |

## Cost examples

1,000 requests with 2,000 input and 500 output tokens each:

- Scaleway: $6.75

100 long-document requests with 100,000 input and 2,000 output tokens each:

- Scaleway: $16.50

## Features

Supported: Function calling, Image input, Reasoning.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="scaleway/mistralai/mistral-medium-3.5-128b",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Mistral Medium 3.5 128B cost?

Mistral Medium 3.5 128B costs $1.50 per 1M input tokens and $7.50 per 1M output tokens on Scaleway.

### What is the context window of Mistral Medium 3.5 128B?

Mistral Medium 3.5 128B has a 256,000-token context window and returns up to 16,384 tokens per response.

### Which providers offer Mistral Medium 3.5 128B?

Mistral Medium 3.5 128B is available from Scaleway through LiteLLM, using the model name scaleway/mistralai/mistral-medium-3.5-128b.

### How do I call Mistral Medium 3.5 128B with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="scaleway/mistralai/mistral-medium-3.5-128b", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does Mistral Medium 3.5 128B support?

Mistral Medium 3.5 128B supports function calling, image input and reasoning.

### When did LiteLLM add Mistral Medium 3.5 128B?

Mistral Medium 3.5 128B was added to LiteLLM's model price file in June 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json