GPT-5.6 Tops 17-Model Strategic Reasoning Benchmark, Opus 4.8 Ranks 5th
petburiraja · reddit · 2026-07-22
A private operator released a comprehensive benchmark of 17 frontier LLMs, evaluating strategic reasoning (30%), advisory quality (25%), long-form analytical production (25%), and critical review (20%).
Key Rankings:
- GPT-5.6 Sol high took 1st place with a 96.5 blend score, followed by Qwen 3.8 Max (95.0) and GPT-5.6 Sol xhigh (93.8).
- Opus 4.8 ranked 5th at 92.3, showing strong advisory quality (96.7) but lower strategic reasoning (87.0).
- Grok 4.5 scored 92.0 overall, leading the pack in strategic reasoning (96.0) but falling behind in critical review (83.2).
Caveats: The test was run with n=1 per prompt, and cross-judge comparison approximates within a ±3-5 pt error margin. The author notes this is domain-specific to strategic analysis and does not reflect coding, vision, or long-context capabilities.
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