Rumor: Anthropic Releases Opus 5 with Fast Mode and Top Research Capabilities
cedric_chee · x · 2026-07-25
Rumor has it that Anthropic has released the Opus 5 model. It allegedly offers a Fast mode running at 2.5x default speed for twice the base price, with no data-retention requirements for general API access. It also becomes their most capable generally available model for scientific research, with bio requests previously blocked on Fable 5 now routing to Opus 5.
Related event: Anthropic Rumored to Release Opus 5 with Fast Mode and Advanced Visuals(3 posts)→
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