Model
Who uses GPT-5.6 Luna
1 person lists GPT-5.6 Luna as their model, 2 more use it alongside something else. Newest evidence: Amjad Masad, Aug 19, 2026.
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Also in the mix
- Simon Willison · Compared directly with Astra.
- Roy · Benchmark arm, not evidence of a current global default: gpt-proxy/gpt-5.6-luna at xhigh on August 9.