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Claude Opus 5.5 and OpenAI GPT-6 Sol & Luna both launch today with lower costs

Anthropic and OpenAI are both launching new model updates today, with Claude Opus 5.5 and GPT-6 Sol & Luna both being announced within roughly an hour of each other. more…

9to5Google 5 newsrooms Tue, 22 Sep 2026 20:20
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