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Mistral: Mistral Medium 3

mistralai/mistral-medium-3
TextInput: text · image · fileTools131KAdded May 7, 2025

Try Mistral: Mistral Medium 3 now

Runs on your balance at the prices above. New accounts start with free usage.

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Session cost $0.00

Mistral: Mistral Medium 3 at a glance

  • Input price is 11% lower than the median of 434 Text models.
  • Context window of 131,072 tokens, enough for long documents and multi-turn conversations.
  • Supports tool (function) calling for agents and integrations.
  • Supports structured JSON output with a schema.
  • Accepts images as input (vision).
  • A typical request (1,000 input / 500 output tokens) costs about $0.00490.

About Mistral: Mistral Medium 3

Mistral Medium 3 is an enterprise-grade language model from Mistral, released by the provider on 7 May 2025. It sits in the text category and is positioned as a high-performance model that balances strong reasoning with multimodal input handling. If you are evaluating it for a production workload, the key point is that Mistral built it for general text generation and reasoning tasks rather than for a single narrow niche.

The model accepts text, images and files as input, and it produces text as output. Its context window is 131,072 tokens, and the maximum output length is 104,857 tokens, so it can handle long documents and still return substantial completions. The knowledge cutoff is 31 March 2025. Multimodal input plus a large context makes it suitable for tasks where you need to reason over a mix of prose and visual or file-based material in one request.

Practical use cases follow directly from those capabilities. You can use it for document analysis and summarisation, including PDFs or other files that need to be read and reasoned over. Image input allows it to describe, interpret or extract information from visuals alongside text instructions. The long context supports codebase review, multi-document comparison and long-form drafting. Its tool and structured output support also makes it a candidate for agents and pipelines that need reliable machine-readable responses rather than free text.

You can call Mistral Medium 3 through api14's OpenAI-compatible API using the model id "mistralai/mistral-medium-3". Because the interface is OpenAI-compatible, existing clients and SDKs that target the OpenAI chat completions format work with minimal changes. The model supports frequency_penalty, max_tokens, presence_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools and top_p. That combination covers sampling control, deterministic runs via seed, stop sequences, JSON or schema-constrained output, and function or tool calling.

One limit worth noting is the output modality: the model returns text only, so it cannot generate images or audio. If your task depends on image or audio generation, or on capabilities outside text and multimodal input reasoning, another model would fit better. For text generation, document reasoning and tool-driven workflows, though, Mistral Medium 3 is a reasonable candidate given its context size, file and image input, and parameter support. Check the live price table on this page for current rates before committing.

How to call the Mistral: Mistral Medium 3 API

  1. Create an API key in your dashboard.
  2. Install the official openai SDK for your language.
  3. Set baseURL to https://api14.com/api/v1 and model to "mistralai/mistral-medium-3".
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api14.com/api/v1",
  apiKey: process.env.API14_API_KEY,
});

const result = await client.chat.completions.create({
  "model": "mistralai/mistral-medium-3",
  "messages": [
    {
      "role": "user",
      "content": "Explain vector databases in two sentences."
    }
  ]
});
console.log(result.choices[0].message.content);

Supported parameters

frequency_penaltymax_tokenspresence_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_p

Specifications

Context length
131,072
Max output
104,857
Input
text, image, file
Output
text
Knowledge cutoff
2025-03-31

Requests on api14 · last 7 days

10-1610-1710-1810-1910-2010-2110-22

Mistral: Mistral Medium 3: frequently asked questions

How much does the Mistral: Mistral Medium 3 API cost?
Mistral: Mistral Medium 3 costs Input $1.40 / 1M tokens. It is charged from your USD balance only for successful requests; failed requests are free.
What is the context window of Mistral: Mistral Medium 3?
Mistral: Mistral Medium 3 reads up to 131,072 tokens per request: prompt, history and documents together. It writes up to 104,857 output tokens per response.
What can Mistral: Mistral Medium 3 do?
Mistral: Mistral Medium 3 accepts text, image, file and returns text. It supports tool calling, structured JSON output.
How do I call Mistral: Mistral Medium 3 from my code?
Point any OpenAI SDK at https://api14.com/api/v1 and set the model to "mistralai/mistral-medium-3". No other code changes. Copy a ready example from the code panel on this page.
What are alternatives to Mistral: Mistral Medium 3?
Comparable Text models at a similar price: Mistral: Devstral 2 2512, Mistral: Mistral Medium 3.1, AionLabs: Aion-2.0. Each runs through the same API key, so switching is one string.

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