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Alibaba Cloud (Qwen)Qwen3.6-PlusVSxAIGrok 4.20

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

Our Take

We recommend choosing Qwen3.6-Plus because it outperforms or matches Grok 4.20 across reasoning, coding, and context capacity while being cheaper or equal in cost. Choose Qwen3.6-Plus for superior overall value.
WHY?
Benchmark Calculations & Evidence:
  • Coding Benchmarks: Both models were evaluated on the SWE-bench Pro benchmark. Qwen3.6-Plus scored 56.6%, while Grok 4.20 scored 51.8%.
  • Reasoning Benchmarks: Both models were evaluated on the GPQA Diamond benchmark. Qwen3.6-Plus scored 90.4%, while Grok 4.20 scored 90%.
  • Context Window: Qwen3.6-Plus supports a 1M context window compared to 1M for Grok 4.20.
  • Cost Comparison: Qwen3.6-Plus blended CPM is $0.5/$3 compared to $2/$6 for Grok 4.20.
  • Was this recommendation helpful?
    Model Specs

    Qwen3.6-Plus

    Benchmarks & Scores

    Coding (swe-bench-pro)Winner (+4.8%)
    56.6%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)Winner (+0.4%)
    90.4%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)2.7x cheaper
    $1.13Input: $0.50 | Output: $3.00
    Context Window
    1.05M 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)
    90%

    graduate-level science QA

    Cost & Context

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

    Frequently Asked Questions about Qwen3.6-Plus vs Grok 4.20

    Qwen3.6-Plus is cheaper than Grok 4.20. Qwen3.6-Plus has a blended cost of $1.13/1M tokens, which is about 2.7x cheaper than Grok 4.20 at $3.00/1M tokens.

    Qwen3.6-Plus is better for coding tasks on this benchmark. It scores 56.6% 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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