GPT-5.6 Sol improves ARC-AGI-3 by 25% with 6x fewer tokens
OpenAIDevs · x · 2026-08-17
GPT-5.6 Sol improved its accuracy on ARC-AGI-3 from 13.3% to 38.3% using retained reasoning and compaction, while consuming roughly 6x fewer output tokens. Additionally, real estate startup Hypha AI maintained 98% of GPT-5.5's accuracy at 1/18 the cost with GPT-5.6 Luna for document extraction, and Rogo AI used programmatic tool calling to match evaluation quality with 21% fewer input tokens.
Related event: OpenAI Details GPT-5.6 Efficiency and Cost Gains(3 posts)→
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