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Alibaba Cloud (Qwen)Qwen3.6-27BVSxAIGrok 4.20

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

Our Take

We recommend Grok 4.20 if you need peak intelligence and a much larger context window for full-repo analysis, or the free Qwen3.6-27B if you want zero API costs and total offline privacy. While Grok 4.20 offers superior reasoning capability, Qwen3.6-27B runs entirely on your own local hardware. Choose Grok 4.20 for repository-scale analysis, or Qwen3.6-27B for zero-cost offline privacy and complex codebases, multi-file repositories, and architectural planning.
WHY?
Benchmark Calculations & Evidence:
  • Reasoning Accuracy: Both models were evaluated on the GPQA Diamond benchmark. Grok 4.20 scored 90%, while Qwen3.6-27B scored 87.8% (+2.2% gap).
  • Coding Performance: Both models were evaluated on the SWE-bench Pro benchmark. Grok 4.20 scored 51.8%, while Qwen3.6-27B scored 53.5% (+-1.7% gap).
  • Context Window: Grok 4.20 supports a 1M context window, while Qwen3.6-27B supports 262k.
  • Hosting Model: Qwen3.6-27B runs locally for $0 API costs, while Grok 4.20 is a cloud API.
  • Was this recommendation helpful?
    Model Specs

    Qwen3.6-27B

    Open Source

    Benchmarks & Scores

    Coding (swe-bench-pro)Winner (+1.7%)
    53.5%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)
    87.8%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    Self HostLocal execution (zero API fees)
    Context Window
    262.14k tokens
    Model Specs

    Grok 4.20

    Benchmarks & Scores

    Coding (swe-bench-pro)
    51.8%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)Winner (+2.2%)
    90%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    $3.00Input: $2.00 | Output: $6.00
    Context WindowLarger
    1.05M tokens

    Frequently Asked Questions about Qwen3.6-27B vs Grok 4.20

    Qwen3.6-27B is better for coding tasks on this benchmark. It scores 53.5% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning) compared to Grok 4.20 which scores 51.8%.

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