GPT-6 Sol and Luna Reviewed: Cheaper but Worse, Redditor Urges Switch to Opus 5.5
AirportEither2456 · reddit · 2026-09-24
A redditor tested GPT-6 Sol and Luna at every reasoning effort level and found both worse than predecessors: Sol constantly asks for clarification and misreads tasks, regressing from GPT-5.6 Sol High; Luna is cheaper but weaker than GPT-5.6 Luna Max. They slam OpenAI's "cheaper but dumber" lineup, praise Anthropic's Opus 5.5 (a full day of heavy use cost just 10% of a $100 weekly limit), and predict competitive pressure will push the industry toward cheaper-without-dumber models.
Related event: GPT-6 Sol/Luna launch splits opinion: half-price but dumber?(9 posts)→
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