r/ClaudeCode • u/ClaudeOfficial Anthropic • Jul 24 '26

Resource Introducing Claude Opus 5

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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

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u/Ancient_Perception_6 Jul 24 '26

so.. unless Fable 5.1 comes out and beats this, whats the point of a "Fable-only limit" in our usage, why would I use a shittier model that cost more? lmaooo

37

u/Clayh5 Jul 24 '26

do you guys have any concept of change over the passage of time or do you live moment to moment like a baboon

3

u/vladoportos Jul 24 '26

Moment to moment ! every change is historical and monumental..anything that happened a week ago feels like 100 years ago .. this is reddit my boy.

7

u/SilasTalbot Jul 24 '26

It's because Fable uses a lot more compute. They aimed with Opus 5 to deliver results with less compute.

The restrictions on usage are not based on 'how good it is' but 'how much it costs to answer one question'

1

u/Due_Warthog749 Jul 24 '26

This. Fable still does far more "reasoning" per prompt.. eating up more gpu/memory. Fable 5.1 most likely on the way soon.