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DeepSeekDeepSeek V4 ProVSMistral AIMistral Medium 3.5

Analysis by:the whichllmmodel Editorial Team|Updated: June 2026

Our Take

Standardized reasoning and coding benchmarks are currently pending verification for one or both of these models. We recommend testing DeepSeek V4 Pro and Mistral Medium 3.5 directly in their respective provider playgrounds to see which fits your specific prompt styles best.
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Model Specs

DeepSeek V4 Pro

Open SourceAPI Available

Benchmarks & Scores

Coding (swe-bench-pro)
52.1%

complex codebases, multi-file repositories, and architectural planning

Reasoning (gpqa-diamond)
88%

graduate-level science QA

Cost & Context

Cost (per 1M tokens)1.4x cheaper
$2.17Input: $1.74 | Output: $3.48
Context WindowLarger
1.05M tokens
Model Specs

Mistral Medium 3.5

Open SourceAPI Available

Benchmarks & Scores

Coding (swe-bench-pro)
N/A

complex codebases, multi-file repositories, and architectural planning

Reasoning (gpqa-diamond)
N/A

graduate-level science QA

Cost & Context

Cost (per 1M tokens)
$3.00Input: $1.50 | Output: $7.50
Context Window
262.14k tokens

Frequently Asked Questions about DeepSeek V4 Pro vs Mistral Medium 3.5

DeepSeek V4 Pro is cheaper than Mistral Medium 3.5. DeepSeek V4 Pro has a blended cost of $2.17/1M tokens, which is about 1.4x cheaper than Mistral Medium 3.5 at $3.00/1M tokens.

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