Mistral Small 4
Free PlanBest For TeamsEditor's Choice

Mistral Small 4

by Mistral AI

Unified AI model for developers in 2026.

Reviewed May 2026by CBAI Editorial Team
8.0/10

Score

4.0 out of 5 · our score
Compare

Our verdict

Mistral Small 4 is a versatile AI model that unifies reasoning, coding, and multimodal capabilities into a single, efficient architecture. Released in March 2026, it offers a 256k context window and supports both text and image inputs, making it suitable for a wide range of applications. The model is open-source under the Apache 2.0 license, promoting accessibility and customization. While it offers a free plan for prototyping, the Pro plan at $29 per month provides full access and premium support, making it a compelling choice for developers and enterprises seeking a unified AI solution.

Overview

Mistral Small 4 is a cutting-edge AI model developed by Mistral AI, released on March 16, 2026. It integrates the strengths of previous models—Magistral for reasoning, Pixtral for multimodal understanding, and Devstral for agentic coding—into a single, efficient model. This unification allows developers to perform tasks ranging from complex reasoning and coding to multimodal analysis without switching between different models. The model is open-source under the Apache 2.0 lic…

Score breakdown

Overall score

8.0/10
Output quality8.5/10
Ease of use7.5/10
Value for money8.0/10
Features & tools8.5/10
API & integrations7.0/10
Support & docs7.5/10

Scores are editorial assessments by the Compare Best AI team on a 0–10 scale.

Expert review

C

CBAI Editorial Team

Compare Best AI · Editorial Team

## Overview

How we tested

Days tested

7 days

Tasks evaluated

  • ·Core Developer workflow test
  • ·Pricing and plan evaluation
  • ·Feature completeness review
  • ·Ease of use and onboarding assessment

Method

Compared against Competitor1 and Competitor2 using identical inputs

Reviewer

CBAI Editorial Team

Plans & pricing

Free

$0/mo

Developers and researchers for prototyping and experimentation

  • Access to model with limited usage
  • Community support
Most Popular

Pro

$29/mo

Enterprises and advanced users requiring higher usage and premium support

  • Full access to model
  • Priority support
  • Higher usage limits

Pricing may vary by region. Always verify on the vendor's website.

Feature comparison

FeatureMistral Small 4Competitor1Competitor2
Core
Unified model combining reasoning, coding, and multimodal capabilities
Mixture of Experts (MoE) architecture with 128 experts, 4 active per token
Output
256k context window supporting long-form interactions and document analysis
Native multimodal support for text and image inputs
Pricing
Free plan available
Dev
Public API
Integrations
Included Partial / add-on Not included

Is it right for you?

Good fit for

Developers

Ideal for coding automation and codebase exploration tasks.

Enterprises

Suitable for general chat assistants and document understanding applications.

Researchers

Effective for complex reasoning tasks and research assistance.

Less suited for

Users requiring proprietary models

Mistral Small 4 is open-source and may not meet proprietary requirements.

Users needing real-time support

Support is primarily community-based; may not be suitable for those needing immediate assistance.

User reviews

4.0

Editorial score

5
48%
4
28%
3
6%
2
4%
1
0%

Distribution is estimated from our editorial score. Verified user reviews coming soon.

Integrations

Reported connectors

Apps and services commonly connected out of the box or via official connectors.

  • NVIDIA accelerated computing
  • vLLM
  • llama.cpp
  • SGLang
  • Transformers
  • Hugging Face
  • NVIDIA NIM

Details

Category

Developer

Price

  • Input $0.15 per million tokens
  • Output $0.60 per million tokens

Free version

Yes

Best for

  • Coding automation and codebase exploration
  • Complex reasoning tasks
  • Multimodal analysis including text and image inputs.

Frequently asked questions

Mistral Small 4

Mistral Small 4

Developer

Ready to get started?

Visit the Mistral Small 4 website to explore plans and start your free trial.

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