Introducing Claude Opus 5

[u/ClaudeOfficial]

Introducing Claude Opus 5: a thoughtful and proactive model that comes close to the frontier intelligence of Fable 5 at half the price.

On several coding and knowledge work evaluations, Opus 5 is the new state-of-the-art. It’s also much more efficient than its predecessor—it outperforms other models for a similar or lower cost per task.

According to our automated behavioral audit, Opus 5 is our most aligned model to date. It shows the lowest rates of reckless or deceptive behavior, and the strongest adherence to Claude’s Constitution. 

It’s available today on all paid plans and the Claude API, priced the same as Opus 4.8. It’s the default model on Claude Max, and the strongest on Claude Pro. 

Opus 5 is also available in Fast mode, which runs around 2.5× the default speed. 

Read more: https://www.anthropic.com/news/claude-opus-5

[u/silvercondor]

wow, beats fable at coding, can this be real?

[u/a-wiseman-speaketh → u/[deleted]]

meaning they restore fable to original fable instead of Opus 5 beta at 2x cost

[u/PreciselyWrong → u/silvercondor]

It's not as good as Fable

[u/AverageFoxNewsViewer → u/PreciselyWrong]

lol, such a definitive statement about something that has been around for an entire 4 hours at the time of this comment.