GPT-5.6 Blind Test Comparisons

soumitrashukla9 · x · 2026-07-10

A post shares hands-on and blind test results for GPT-5.6, comparing Sol, Terra, Luna, Fable 5, and Sonnet 5 across PRDs, prototyping, coding, and conversational performance, noting a significant gap in the results.

Related event: GPT-5.6 Tested: Major Coding Leap and Direct Rival to Fable 5(30 posts)→

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