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DeepSeekDeepSeek V4 FlashVSMistral AIMistral Small 4

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

Our Take

We recommend Mistral Small 4 for practical local execution on standard developer hardware, or DeepSeek V4 Flash if you need peak reasoning and have the VRAM (or a cloud API) to host it. While DeepSeek V4 Flash offers frontier capability, its massive parameter size makes it extremely difficult to host locally. Choose Mistral Small 4 for standard local setups, or DeepSeek V4 Flash for peak reasoning.
▶WHY?
Benchmark Calculations & Evidence:
  • Model Size: DeepSeek V4 Flash is a massive 284B parameter model requiring heavy GPU infrastructure, while Mistral Small 4 is a 119B parameter model.
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    Model Specs

    DeepSeek V4 Flash

    Open SourceAPI Available
    Website🤗HF

    Benchmarks & Scores

    Coding (swe-bench-pro)
    49.1%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)Winner (+8.8%)
    80%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)1.5x cheaper
    $0.17Input: $0.14 | Output: $0.28
    Context WindowLarger
    1.05M tokens
    Model Specs

    Mistral Small 4

    Open SourceAPI Available
    Website🤗HF

    Benchmarks & Scores

    Coding (live-code-bench)
    63.6%

    scripting single-file apps or clearly defined functions

    Reasoning (gpqa-diamond)
    71.2%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    $0.26Input: $0.15 | Output: $0.60
    Context Window
    262.14k tokens
    Read our data collection methodology

    Frequently Asked Questions about DeepSeek V4 Flash vs Mistral Small 4

    DeepSeek V4 Flash is cheaper than Mistral Small 4. DeepSeek V4 Flash has a blended cost of $0.17/1M tokens, which is about 1.5x cheaper than Mistral Small 4 at $0.26/1M tokens.

    For coding tasks, DeepSeek V4 Flash scores 49.1% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning), while Mistral Small 4 scores 63.6% on live-code-bench (scripting single-file apps or clearly defined functions).

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