The Frontier · Tags

#opus

1 published article

• Models · Dispatch

  Anthropic ships Claude Opus 4.8 at $5 input and $25 output with cheaper fast mode

  28 May 2026. Same list price as Opus 4.7. Fast mode $10 input and $50 output. System card: not past Mythos Preview on RSP. Prompt-injection tests vs 4.7 are mixed.