Researchers Call GPT-5.6 Sol Most Capable Model
Academics at Microsoft and Toronto highlight its performance in multiple domains.
Dimitris Papailiopoulos posted that GPT-5.6 Sol appears to be the strongest model he has tested for coding, math, agentic workflows, prose and creative writing. He likened the release to Opus 4.6 from OAI and judged it more notable than GPT-5. Chris J. Maddison replied that GPT 5.6 Sol on Ultra represents a step change for his work. Both researchers are identified in the posts by their academic affiliations. The statements come from visible tweets and replies on the platform.
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