How enabling two settings tripled our scores on the ARC-AGI-3 benchmark
How two API settings improved GPT-5.6 performance on ARC-AGI-3, boosting scores and efficiency by retaining reasoning and enabling compaction.
At a glance
- Source
- OpenAI
- Published
- Jul 29, 2026
- Read time
- 1 min read
- Primary lane
- Research
Quick read
3 bullets- How two API settings improved GPT-5.6 performance on ARC-AGI-3, boosting scores and efficiency by retaining reasoning and enabling compaction.
- This is part of OpenAI's research stream.
- The post was published on Jul 29, 2026.
Why it matters
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Builder takeaway
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Product updates matter when they expand what builders and teams can actually ship now. A release is important if it changes capability, usability, or deployment economics in a way that affects real workflows.
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