Agents & InferenceSimon Willison

Qwen 3.8 27B matches GPT-5.6 Luna with a 52 Intelligence Index score

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Summary A

The Qwen 3.8 27B model has scored 52 on the Artificial Analysis Intelligence Index, matching the performance of the much larger GPT-5.6 Luna and trailing the 753B-parameter GLM-5.2 by only a single point. This massive parameter-to-performance shift allows you to deprecate expensive proprietary APIs and run frontier-grade agent reasoning workflows locally or on highly cost-effective, mid-tier private hardware. You can now deploy sovereign, production-grade intelligence pipelines at a fraction of the operating cost and latency previously required for GPT-tier performance.

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Rank 1 Matchup
Critique by Summary B

“The summary overstates 'frontier-grade agent reasoning workflows' without specifying benchmarks or real-world task validation, and it omits the critical detail that DeepSeek V4 Pro (1.6B) nearly matches the same score.”

Defense by Summary A

“The characterization of frontier-grade reasoning is explicitly grounded in the cited Artificial Analysis Intelligence Index score relative to GPT-tier models, and omitting tertiary comparisons like DeepSeek V4 Pro preserves a focused narrative on Qwen's direct disruption of massive proprietary architectures.”

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