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Chat with Mistral Small 4 for free on AIFreeForever

Mistral Small 4 Free AI Chatbot

Mistral Small 4 is Mistral AI's open model for fast replies and step-by-step reasoning. It reads images and handles up to 256K tokens in one chat. Mistral Small 4 is available for free on AIFreeForever.

Create anything with Mistral Small 4 using our @skills feature

About Mistral Small 4 AI model

Mistral Small 4 is Mistral AI's open model that gives fast replies or step-by-step reasoning in one model, released on 16 March 2026. It reads text and images, with a 256K-token context window. Chat with Mistral Small 4 free on AIFreeForever.

Mistral Small 4Made by Mistral AI Try Mistral Small 4 on AIFreeForever→
Made byMistral AI
Model IDmistral-small-2603
ReleasedMarch 16, 2026
Size119B parameters (6.5B active)
LicenceApache 2.0
API price per 1M tokens$0.15 in / $0.60 out
Price of Mistral Small 4 on AIFreeForeverFree

AIFreeForever is not affiliated with or endorsed by the model providers. All trademarks and logos belong to their owners.

What Mistral Small 4 is best at

Speed

Handles 3× more requests a second than Mistral Small 3.

Science

Scores 71.2 on GPQA Diamond, a test of graduate-level science.

Long documents

Scores 0.72 on AA-LCR, a test of reasoning over long text.

Vision

Reads images as well as text.

How to use Mistral Small 4 for free on AIFreeForever

  1. 1

    Open the chat

    and choose Mistral Small 4.

  2. 2

    Type your question

  3. 3

    Add an image

    if your question is about a photo, chart or screenshot.

  4. 4

    Read the answer

    and ask follow-up questions.

Tip: Ask Mistral Small 4 to think step by step on hard questions, so you get more accurate answers when using the model.
Try it for free

Why choose AIFreeForever's free Mistral Small 4?

No upgrade required

Our chatbot gives you Mistral Small 4 free, without a Mistral account.

Fast replies

It handles 3× more requests a second than Mistral Small 3.

Reasoning

Our chatbot switches between quick answers and step-by-step thinking.

Image reading

When you upload an image, our chatbot can see its content.

256K context window

Our chatbot takes long reports so you can ask about any part.

Open model

Apache 2.0 allows free business use.

Chat with Mistral Small 4 on AIFreeForever

AIFreeForever's free chatbot is fully integrated with Mistral Small 4 via the official API providers. To get started, type your question or add a supporting document, and Mistral Small 4 answers in the same chat. Use it to write emails, summarise reports, solve maths questions and more.

This model is subject to availability, based on our budget. For long-term use, we advise you to pay for an upgrade with the model provider.
Tip: Mistral Small 4 is best suited for everyday tasks.

What you can create with Mistral Small 4

A paper aeroplane folded from violet card, flying above a soft green glowPlain chat

Emails

A short, friendly reminder.“Write a short, friendly reminder for an invoice that's 10 days late.” Try the prompt→ A set of polished wooden geometry blocks: a cube, a cone and a spherePlain chat

Maths solving

Each step, with a check.“Solve this step by step and check the answer: a 20% discount, then 10% tax on $80.” Try the prompt→ A lynx with hawk wings sitting on a smooth dark stonePlain chat

Image questions

What a photo or chart shows.“What does this chart show? List the 3 biggest changes.” Try the prompt→ A glass jar of coloured pencils in purple, green and lavenderPlain chat

Report summaries

Ten bullets from a long report.“Summarise this report in 10 bullets with page numbers.” Try the prompt→ A tailored dark jacket on a wooden hanger with a violet pocket square@Resume

Resumes

A one-page resume.“@Resume A one-page resume for a nurse moving into healthcare admin.” Try the prompt→ A clear glass seedling pot with a small coin-leaved plant growing in it@Business

Income ideas

Side jobs that fit you.“@Business 5 weekend jobs for someone who speaks French and Spanish.” Try the prompt→

How much does Mistral Small 4 cost?

Mistral Small 4 costs $0.15 per million input tokens and $0.60 per million output tokens on Mistral's API. It's free on AIFreeForever and free to download under Apache 2.0.

WherePriceCached inputContext
Mistral API (mistral-small-2603)$0.15 in / $0.60 out per 1M tokens—256K
OpenRouter$0.15 in / $0.60 out per 1M tokens—262K
Hugging Face weightsFree (Apache 2.0)—256K
AIFreeForever's Free AIFree——

Can you use Mistral Small 4 for free?

Yes. You can use Mistral Small 4 free in three ways:

  • On AIFreeForever: pick it in the chat and start typing.
  • On NVIDIA's site: try it for free at build.nvidia.com.
  • On your own servers: download it from Hugging Face. Mistral lists 4× H100 or 2× H200 GPUs as the minimum.
Chat with Mistral Small 4

Mistral Small 4 benchmark results

Mistral Small 4 scored 71.2 on GPQA Diamond and 0.72 on AA-LCR, using about 1.6K characters of output for AA-LCR.

BenchmarkWhat it testsMistral Small 4
GPQA DiamondGraduate-level science71.2
AA-LCRReasoning over long text0.72
ThroughputRequests a second3× Mistral Small 3
LatencyTime to finish an answer (latency-optimised setup)40% shorter

This benchmark was extracted from Mistral AI and Mistral's model card.

Qwen models needed about 5.8K–6.1K characters of output to get a similar AA-LCR score, against about 1.6K for Mistral Small 4. On LiveCodeBench, Mistral Small 4 beat GPT-OSS 120B while writing 20% less.

Mistral Small 4 vs other top models

Mistral Small 4 is the largest Apache 2.0 model below that reads images and switches reasoning on or off.

ModelContextImage inputStrength
Mistral Small 4256KYesFast replies with reasoning
Qwen3.5-9B262KYes, plus videoSmall open model
MiniMax M2.7197KNoCoding and office files
GPT-4o mini128KYesFast, simple answers
Tip: Pick Mistral Small 4 for quick answers with images. Pick Qwen3.5-9B if you also need video.

How Mistral Small 4 works

Mistral Small 4 is a mixture-of-experts model: it has 128 experts and uses 4 for each token, so only 6.5B of its 119B parameters run at a time. Developers set `reasoning_effort` to "none" for fast replies or "high" for step-by-step thinking, as explained in Mistral's model card.

Best Mistral Small 4 prompts

Free Mistral Small 4 Reminder Email Prompt

“Write a short, friendly reminder to a client about an invoice that's 10 days late. Under 80 words.” Try the prompt→
Download the free Mistral Small 4 prompt guide (PDF) →

Limitations of Mistral Small 4 on AIFreeForever

Mistral Small 4 has three limits on AIFreeForever, which connects to it through its API and adds our skills and file editors:

  • Mistral's Le Chat app, agents and connectors aren't part of AIFreeForever.
  • You can't run Python, start agents that work on their own, or run regression analysis here.
  • Reasoning makes answers slower; ask for a short answer when you need speed.
Tip: Test Mistral Small 4 free here first. For the best experience, use Mistral's own platform.

Best ways to test Mistral Small 4 free

TestHow to use it on AIFreeForever
ReasoningAsk a word problem; check each step.
ImagesUpload a chart; check every value.
Long textPaste a long report; ask about a detail near the end.
Compare modelsRun the same prompt on Mistral Small 3.

These limitations only cover what you can do with Mistral Small 4 on AIFreeForever, not the limits of the model on Mistral AI’s own platform. All trademarks belong to their owners, and the model’s full features are only available when you use it officially through Mistral AI.

Got questions about Mistral Small 4? Here are some answers

Is Mistral Small 4 free?

Yes. It's free on AIFreeForever and free to download under Apache 2.0.

Who made Mistral Small 4?

Mistral AI made Mistral Small 4.

When was Mistral Small 4 released?

Mistral AI released Mistral Small 4 on 16 March 2026.

Can Mistral Small 4 read images?

Yes. It reads text and images, and answers in text.

How large is the Mistral Small 4 context window?

Mistral Small 4 takes up to 256K tokens.

Does Mistral Small 4 have a reasoning mode?

Yes. Developers set it to "none" for fast replies or "high" for step-by-step thinking.

What's the difference between Mistral Small 4 and Mistral Small 3?

Mistral Small 4 is larger, reads images, adds reasoning and has a 256K-token window. Mistral Small 3 has a 32K-token window and reads text only.

Are Mistral Small 4 answers 100% correct?

No. It can make mistakes, so check important facts and figures.

Chat with Mistral Small 4 for free

Ask Mistral Small 4 a question, paste your code or add a file and get instant answers. Not satisfied? Compare your answers to other models for free.

Chat with Mistral Small 4

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