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DeepSeekDeepSeek V4 ProVSGoogleGemini 2.5 Pro

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

Our Take

We recommend DeepSeek V4 Pro for superior overall value and reasoning capabilities, as it is cheaper or equal in cost while delivering peak intelligence. While DeepSeek V4 Pro excels at complex complex codebases, multi-file repositories, and architectural planning, Gemini 2.5 Pro is suited for scripting multi-file code and clearly defined tasks. Choose DeepSeek V4 Pro for architectural codebase planning, or Gemini 2.5 Pro if you specifically require its simpler functions profile.
▶WHY?
Benchmark Calculations & Evidence:
  • Coding Evaluation: DeepSeek V4 Pro was evaluated on SWE-bench Pro (scoring 52.1%), while Gemini 2.5 Pro was evaluated on SWE-bench Verified (scoring 59.6%).
  • Reasoning Accuracy: Both models were evaluated on the GPQA Diamond benchmark. DeepSeek V4 Pro scored 88%, while Gemini 2.5 Pro scored 84.4%.
  • Cost Efficiency: Gemini 2.5 Pro pricing ($1.25/M input, $10/M output) is 0.6x cheaper than DeepSeek V4 Pro ($1.74/M input, $3.48/M output).
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    Model Specs

    DeepSeek V4 Pro

    Open SourceAPI Available
    Website🤗HF

    Benchmarks & Scores

    Coding (swe-bench-pro)
    52.1%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)Winner (+3.6%)
    88%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)1.6x cheaper
    $2.17Input: $1.74 | Output: $3.48
    Context Window
    1.05M tokens
    Model Specs

    Gemini 2.5 Pro

    Website

    Benchmarks & Scores

    Coding (swe-bench-verified)
    59.6%

    multi-file code and clearly defined tasks

    Reasoning (gpqa-diamond)
    84.4%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    $3.44Input: $1.25 | Output: $10.00
    Context Window
    1.05M tokens
    Read our data collection methodology

    Frequently Asked Questions about DeepSeek V4 Pro vs Gemini 2.5 Pro

    DeepSeek V4 Pro is cheaper than Gemini 2.5 Pro. DeepSeek V4 Pro has a blended cost of $2.17/1M tokens, which is about 1.6x cheaper than Gemini 2.5 Pro at $3.44/1M tokens.

    For coding tasks, DeepSeek V4 Pro scores 52.1% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning), while Gemini 2.5 Pro scores 59.6% on swe-bench-verified (multi-file code and clearly defined tasks).

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