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Opus 5.5 is quietly the best value model Anthropic has shipped. Anthropic just published the official playbook for Opus 5.5, written by Addy Osmani, who spent years on Google's Chrome team. 40% cheaper than Opus 5. Cache reads 60% cheaper. Fable 5.1 level on most tasks. Runs for hours... show more
11,518 görüntüleme • 4 gün önce •via X (Twitter)
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@DamiDefi interesting move. wonder how Opus 5.5 handles edge cases compared to Fable 5.1? those usually trip up similar models.

40% cheaper and runs for hours, yeah that changes things tbh

The best deal fr

the pricing shift here actually makes this model way more competitive theyre playing the value game right not just pushing new versions

Cutting cost, but keeping the value

The number I'd want is cost per finished task, not per token. A cheaper model that needs two extra passes isn't cheaper.

It really is a game changer for value, but many people are still prompting it like older models and losing money. We actually went deeper on this here:

Opus has always been the reliable workhorse. 40% cheaper? That’s not just value; that’s permission to think bigger without burning cash. A smart mom move in silicon form. Addy knows optimization well.

Anthropic quietly cooked with this one

No lies

cache reads only get cheap if the prefix is byte identical, a timestamp near the top and you pay the write every single time

fable level performance is impressive 🔥

