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Alibaba Cloud (Qwen)Qwen3.6-27BVSAnthropicClaude Haiku 4.5

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

Our Take

We recommend Qwen3.6-27B over Claude Haiku 4.5 because it holds a clear reasoning lead. Choose Qwen3.6-27B for offline data control and complex codebases, multi-file repositories, and architectural planning, or Claude Haiku 4.5 only if you prefer using a cloud-hosted API setup for multi-file code and clearly defined tasks.
▶WHY?
Benchmark Calculations & Evidence:
  • Reasoning Accuracy: Both models were evaluated on the GPQA Diamond benchmark. Qwen3.6-27B scored 87.8%, while Claude Haiku 4.5 scored 73% (+14.8% gap).
  • Coding Performance: Evaluated on different benchmarks. Qwen3.6-27B scored 53.5% on SWE-bench Pro (complex codebases, multi-file repositories, and architectural planning), while Claude Haiku 4.5 scored 73.3% on SWE-bench Verified (multi-file code and clearly defined tasks).
  • Hosting Model: Qwen3.6-27B runs locally for $0 API costs, while Claude Haiku 4.5 is hosted via a cloud-hosted API setup.
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    Model Specs

    Qwen3.6-27B

    Open Source
    🤗HF

    Benchmarks & Scores

    Coding (swe-bench-pro)
    53.5%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)Winner (+14.8%)
    87.8%

    graduate-level science QA

    Cost & Context

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

    Claude Haiku 4.5

    Website

    Benchmarks & Scores

    Coding (swe-bench-verified)
    73.3%

    multi-file code and clearly defined tasks

    Reasoning (gpqa-diamond)
    73%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    $2.00Input: $1.00 | Output: $5.00
    Context Window
    200k tokens
    Read our data collection methodology

    Frequently Asked Questions about Qwen3.6-27B vs Claude Haiku 4.5

    For coding tasks, Qwen3.6-27B scores 53.5% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning), while Claude Haiku 4.5 scores 73.3% on swe-bench-verified (multi-file code and clearly defined tasks).

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