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Model comparison

Mistral Medium 3.5 vs DeepSeek-V4-Pro

Compare Mistral Medium 3.5 and DeepSeek-V4-Pro 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.

Advanced options
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)
DeepSeek-V4-ProDeepSeekNo reviewed rate
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.

DeepSeek-V4-Pro

DeepSeek's flagship million-context text model for difficult reasoning, coding, long-running agents, tools, and very large outputs.

Best for

  • Complex coding and tool-using agents
  • Million-token repositories and document sets
  • Teams that can benefit from peak/off-peak routing

Watch out for

The provider does not publish a knowledge cutoff or a universal speed measure. Review jurisdiction, account eligibility, cache behavior, data terms, and the full reasoning-output cost before sending sensitive workloads.

Compare the published facts

Mistral Medium 3.5 vs DeepSeek-V4-Pro

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 3.5DeepSeek-V4-Pro
Context windowMaximum combined prompt and working context documented by the provider.256K tokens combined1M tokens
Maximum outputProvider-published response limit, where available.Not separately publishedUp to 384K tokens
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$1.32 / 1M peak uncached; $0.66 off-peak
Output priceCurrent standard list price per million output tokens unless noted.$7.50 / 1M$3.96 / 1M peak; $1.98 off-peak
InputsMedia types accepted by the listed model endpoint.Text, imageText
Tools & agentsSelected native tools and agent-building capabilities, not an exhaustive list.Functions, agents, built-in tools, structured and predicted outputsTools, JSON output, Responses API, thinking effort, FIM beta

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.

DeepSeek-V4-Pro

DeepSeek documents its Responses API as stateless and says responses and conversations are not stored by that endpoint. This is not a complete account-wide retention or training-use promise; review current platform terms and automatic cache behavior for sensitive data.

Frequently asked questions

Mistral Medium 3.5 vs DeepSeek-V4-Pro FAQ

What is the main difference between Mistral Medium 3.5 and DeepSeek-V4-Pro?

Mistral Medium 3.5: Mistral's open-weight frontier model for demanding multimodal, coding, reasoning, and agent workflows, with a 256K context window. DeepSeek-V4-Pro: DeepSeek's flagship million-context text model for difficult reasoning, coding, long-running agents, tools, and very large outputs.

Should I choose Mistral Medium 3.5 or DeepSeek-V4-Pro?

Consider Mistral Medium 3.5 when your priority is Complex coding and agent workflows. Consider DeepSeek-V4-Pro when your priority is Complex coding and tool-using agents. Test both with your own data and provider route before committing.

Is this Mistral Medium 3.5 vs DeepSeek-V4-Pro 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.