Opus 5.5 and GPT-6 Sol/Luna Drop Same Day
Sep 22, 2026 · 798 messages · 89 active members
Anthropic launched Opus 5.5 (~30% faster, ~40% cheaper than Opus 5, Fable 5.1-level performance) with banked resets and a rumored full 5.5 series. OpenAI countered with GPT-6 Sol at half Opus 5.5's price and Luna at $0.1…
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