GPT-5.6 Sol Tops Coding Benchmark

thesaraharminta · x · 2026-07-10

Reports indicate that GPT-5.6 Sol (max) leads all evaluations in the Artificial Analysis Coding Agent Index and ties with Grok 4.5 on the Grok Build for SWE-Atlas-QnA.

Additionally, its cost per task is lower than both Claude Fable 5 (max) and Claude Opus 4.8 (max), highlighting its performance-to-cost advantages in coding agent scenarios.

Related event: OpenAI Launches GPT-5.6 Series: Multi-Agent and Cost-Efficiency(119 posts)→

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