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Ep 126: OpenAI's GPT-5.6 Sol just tripled its ARC-AGI-3 score using two API settings that also cut…
Models & Agents OpenAI's GPT-5.6 Sol just tripled its ARC-AGI-3 score using two API settings that also cut output tokens by 6x. What You Need to Know: OpenAI detailed how retaining reasoning and applying context compaction in the Responses API lifted GPT-5.6 Sol’s public ARC-AGI-3 score 188% while slashing tokens. Simon Willison separately noted that GPT-5.6 optimizations already cut OpenAI’s serving costs 20%. Builders should test the same settings on long-horizon agent tasks this week. DEPTH OVER BREADTH (news items) Top Story OpenAI reported that GPT-5.6 Sol’s ARC-AGI-3 score rose 188% on…
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