Rumor: Anthropic May Ship Opus 5.5 This Week, Clashing With OpenAI's Tuesday Tease
CurieuxExplorer · x · 2026-09-21
According to the latest rumors via @testingcatalog, Anthropic is gearing up to compete with OpenAI at the forefront of model releases, with Opus 5.5 possibly arriving as early as this week. The next Fable model was also recently A/B tested on Claude Code and produces notably nice outputs. OpenAI, meanwhile, is teasing a Tuesday event. All unconfirmed.
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