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Model comparison

Mistral Medium 3.5 vs Mistral Small 4

Compare Mistral Medium 3.5 and Mistral Small 4 using the same provider-sourced text & reasoning rubric. No mystery score and no invented benchmark ranking.

Facts checked September 4, 2026

Estimate your cost

Set your usage. Your estimate updates as you type.

Example: 6,000 input tokens for 10 pages, plus a 500-token summary. Page lengths vary; adjust the numbers below.

One run sends your input to the model once and receives an answer. Tokens are pieces of text: input is what you send, output is the answer you receive.

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How this estimate works

Estimates exclude taxes, tools, cache storage/writes, free allowances and custom discounts. Image estimates cover output only, not prompt or reference-image charges. Quality modes differ by model. Unlisted settings are not treated as free.

Estimate your cost
ModelEstimated total (USD)
Mistral Small 4Mistral AI$0.0012
Mistral Medium 3.5Mistral AINo reviewed rate

Quick take

Mistral Medium 3.5

Mistral's open-weight frontier model for demanding multimodal, coding, reasoning, and agent workflows, with a 256K context window.

Best for

  • Complex coding and agent workflows
  • Multimodal document and image reasoning
  • Organizations choosing between hosted and controlled deployment

Watch out for

The headline token price applies to Mistral's standard hosted endpoint. Regional inference costs more, and self-hosting shifts the bill to GPUs, operations, and support.

Mistral Small 4

Mistral's lower-cost open model that combines normal instruction following, reasoning, coding, vision, and agent tools in one endpoint.

Best for

  • Cost-sensitive production assistants
  • Coding and tool use on one flexible model
  • Self-hosted text-and-image applications

Watch out for

Sparse activation lowers inference work but does not make the full 119B checkpoint small. Size hardware around the actual quantization and context you plan to serve.

Compare the published facts

Mistral Medium 3.5 vs Mistral Small 4

Values use each provider's own published units and limits. A blank means the provider did not publish a directly comparable value in the sources reviewed.

Text & reasoningMistral Medium 3.5Mistral Small 4
Context windowMaximum combined prompt and working context documented by the provider.256K tokens combined256K tokens combined
Maximum outputProvider-published response limit, where available.Not separately publishedNot separately published
Knowledge cutoffLatest reliable knowledge date explicitly published by the model provider. Search and connected tools can retrieve newer information but do not change the model's built-in cutoff.Not publishedNot published
Input priceCurrent standard list price per million input tokens unless noted.$1.50 / 1M$0.15 / 1M
Output priceCurrent standard list price per million output tokens unless noted.$7.50 / 1M$0.60 / 1M
InputsMedia types accepted by the listed model endpoint.Text, imageText, image
Tools & agentsSelected native tools and agent-building capabilities, not an exhaustive list.Functions, agents, built-in tools, structured and predicted outputsFunctions, agents, built-in tools, structured and predicted outputs

How to choose

Compare the job, not the hype.

Start with the job you need to complete, then validate cost, access, and policy details on your exact provider route.

Mistral Medium 3.5

Mistral's commercial terms exclude model training by default except when a customer opts in or uses designated Labs or preview models. Standard API input and output retention is generally 30 rolling days for abuse monitoring unless zero data retention is enabled.

Mistral Small 4

Mistral's commercial terms exclude model training by default except when a customer opts in or uses designated Labs or preview models. Self-hosting keeps inference data under the operator's controls; hosted API retention is generally 30 days unless zero data retention is enabled.

Frequently asked questions

Mistral Medium 3.5 vs Mistral Small 4 FAQ

What is the main difference between Mistral Medium 3.5 and Mistral Small 4?

Mistral Medium 3.5: Mistral's open-weight frontier model for demanding multimodal, coding, reasoning, and agent workflows, with a 256K context window. Mistral Small 4: Mistral's lower-cost open model that combines normal instruction following, reasoning, coding, vision, and agent tools in one endpoint.

Should I choose Mistral Medium 3.5 or Mistral Small 4?

Consider Mistral Medium 3.5 when your priority is Complex coding and agent workflows. Consider Mistral Small 4 when your priority is Cost-sensitive production assistants. Test both with your own data and provider route before committing.

Is this Mistral Medium 3.5 vs Mistral Small 4 comparison based on Cody benchmarks?

No. This comparison aligns provider-published facts for the Text & reasoning category. It does not claim a universal winner or combine incompatible third-party benchmark scores.