ChatModelsComparePricingDocs
CouncilClaude CodeCursorCheapest modelsBest for codingFor agentsFree models

Mistral Medium 3.5 API

$1.5/Mtok in

Mistral · text

Mistral's flagship 128B dense model, chat, reasoning and coding merged into one, served from the EU.

Open playgroundView API docs

Overview

About Mistral Medium 3.5

Mistral's flagship 128B dense model, chat, reasoning and coding merged into one, served from the EU. Every model on CompanyFabric shares the same API key, billing balance, and rate-limit envelope, one integration covers the entire library.

Facts

At a glance

Availability

Live

Pricing

$1.5/Mtok in

Metered exactly per call

Context window

262.144k tokens

Commercial use

See license

Open weights under a modified MIT license; commercial output use permitted per Mistral's terms.

Variants

All endpoints

Mistral Medium 3.5

$1.5/Mtok in

Mistral's flagship 128B dense model, chat, reasoning and coding merged into one, served from the EU.

Chat Completions

Quickstart

How to use the Mistral Medium 3.5 API

  1. 1

    Create a free CompanyFabric account, starter credits are included, no card required.

  2. 2

    Copy your API key from the dashboard. One key covers every model in the library.

  3. 3

    Point any OpenAI SDK at api.companyfabric.com/v1 and set model to "mistral/mistral-medium-3-5".

  4. 4

    Read the exact metered cost of the call from the response, the same number shown in the playground.

Use cases

What teams build with it

Agents & copilots

Drive agent loops, tool calls, and user-facing assistants over the OpenAI-compatible endpoint.

agentstool useassistants

Content pipelines

Summarization, rewriting, and structured generation at metered per-token cost.

contentsummarization

Extraction & classification

Turn unstructured input into typed JSON with schema-constrained output.

extractionjson mode

Get better output

Prompting tips

  • State the output format before the task, models follow contracts declared early.
  • Few-shot beats description: two worked examples outperform a paragraph of rules.
  • Cap output length explicitly when cost matters; output tokens dominate most bills.

Exact, metered, prepaid

Mistral Medium 3.5 pricing

Mistral Medium 3.5 pricing is per token: $1.5 / M input · $7.5 / M output. Output tokens cost 5× input tokens, so long generations, not long prompts, are what actually drive most bills. A typical call with a 2k-token prompt and a 1k-token answer costs about $0.0105.

Every call is metered exactly and attributed to your key, the dashboard, the API usage response, and your invoice all read from the same ledger row. Cap any key's monthly spend with a budget cap, and bring your own provider key (BYOK) at 0% platform fee if you already have a direct contract.

EndpointTypePrice
Mistral Medium 3.5Chat$1.5 / M input · $7.5 / M output

Starter credits

Use Mistral Medium 3.5 free

Your CompanyFabric starter credits cover your first Mistral Medium 3.5 calls at no cost, create a free account, no card required, and the credits apply to Mistral Medium 3.5 and every other model on the key. When they run out, prepaid credits or BYOK (0% fee) take over with no plan to pick.

All ways to use AI models free →

Production-grade

Code samples

import OpenAI from "openai"

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

const res = await client.chat.completions.create({
  model: "mistral/mistral-medium-3-5",
  max_tokens: 1024,
  temperature: 0.7,
  messages: [{ role: "user", content: "Say hello from the fabric." }],
})

console.log(res.choices[0].message.content)

Playground

Try it in the browser

PlaygroundMistral$1.5 in / $7.5 out per 1M tokens

Comparisons

Mistral Medium 3.5 vs the alternatives

Mistral Medium 3.5 vs GPT-6 Sol

Mistral Medium 3.5 and GPT-6 Sol compete for the same text workloads. Both run behind the same CompanyFabric key at exact metered prices, A/B them on your real prompts and let the outputs decide, then switch with a one-line change.

Full comparison: Mistral Medium 3.5 vs GPT-6 Sol →

Mistral Medium 3.5 vs GLM-5.3

Mistral Medium 3.5 and GLM-5.3 compete for the same text workloads. Both run behind the same CompanyFabric key at exact metered prices, A/B them on your real prompts and let the outputs decide, then switch with a one-line change.

Full comparison: Mistral Medium 3.5 vs GLM-5.3 →

Mistral Medium 3.5 vs Kimi K2.6

Mistral Medium 3.5 and Kimi K2.6 compete for the same text workloads. Both run behind the same CompanyFabric key at exact metered prices, A/B them on your real prompts and let the outputs decide, then switch with a one-line change.

Full comparison: Mistral Medium 3.5 vs Kimi K2.6 →

Compare

Mistral Medium 3.5 head to head

Mistral Medium 3.5vsGPT-6 SolMistral Medium 3.5vsGLM-5.3Mistral Medium 3.5vsKimi K2.6Mistral Medium 3.5vsGPT-6 LunaMistral Medium 3.5vsGLM-5.3-FlashMistral Medium 3.5vsGemini 3.1 Flash-Lite

FAQ

Frequently asked questions

How much does the Mistral Medium 3.5 API cost?

$1.5 / M input · $7.5 / M output. Every call is metered exactly and shown before you run it.

How do I get a Mistral Medium 3.5 API key?

Create a CompanyFabric account, and one key unlocks Mistral Medium 3.5 and every other model in the library. Free starter credits are included, no subscription, no card required to try it.

Why use Mistral Medium 3.5 on CompanyFabric instead of going direct?

One key, one prepaid balance, and one rate-limit envelope across the whole library, at pricing at parity with or below the direct API. Model switching is a one-line change, and BYOK routing is 0% fee.

Is the API OpenAI-compatible?

Yes, point any OpenAI SDK at api.companyfabric.com/v1 and set model to "mistral/mistral-medium-3-5".

Can I use the output commercially?

Open weights under a modified MIT license; commercial output use permitted per Mistral's terms.

How does billing work?

Prepaid credits via card, or BYOK with your own provider keys at 0% platform fee. No subscription required; balances never expire.

Provider

About Mistral

Mistral publishes the mistral-medium family. License: Open weights under a modified MIT license; commercial output use permitted per Mistral's terms.

Explore

Related model APIs

Claude Sonnet 4.5

$3/Mtok in

Anthropic

Frontier-quality text and reasoning through one OpenAI-compatible endpoint.

text

Claude Haiku 4.5

$1/Mtok in

Anthropic

Fast, cheap frontier-family model for high-volume tasks.

text

Claude Opus 4.6

$5/Mtok in

Anthropic

The frontier tier for the hardest reasoning and agentic work.

text

GPT-5.5

$5/Mtok in

OpenAI

OpenAI's flagship, one key away.

text

GPT-6 Astra

$10/Mtok in

OpenAI

OpenAI's GPT-6 flagship, a million-token window one key away.

text

Gemini 3.7 Flash

$0.75/Mtok in

Google

Google's current fast model, million-token context.

text

Browse all models A–Z →

One key. Every model. Exact prices.

Run Mistral Medium 3.5 with free starter credits. Free starter credits included, no subscription required.

Get your API keyBrowse all models