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Two API Settings Tripled GPT-5.6 Scores on a Hard AI Benchmark — Here's How
OpenAI News·Saturday, 1 August 2026
OpenAI found that enabling two specific API settings boosted GPT-5.6's performance on the ARC-AGI-3 benchmark by 3x. The two settings involve retaining reasoning and enabling compaction. This shows that how you configure an API call can matter as much as which model you pick.
Why It Matters
If you build or experiment with AI workflows, knowing which settings to flip could dramatically change your results without changing your model or budget.
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