OpenAI· GPT / ChatGPT / APICapability change

How enabling two settings tripled our scores on the ARC-AGI-3 benchmark

Two API settings improved GPT-5.6 performance on ARC-AGI-3, boosting scores and efficiency by retaining reasoning and enabling compaction.

From the source

How two API settings improved GPT-5.6 performance on ARC-AGI-3, boosting scores and efficiency by retaining reasoning and enabling compaction.

openai.com

Announced

29 Jul 2026 15:00 UTC

Detected

03 Aug 2026 21:11 UTC (+5d after)