UPDATE: Opus 5.5 is good. Really good. Passes the vibe ✅

Sep 23, 2026 · 3:34 PM UTC

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Replying to @NetworkChuck
We are so back with 5.5
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Replying to @NetworkChuck
I had it take a crack at a fresh design of my no algorithm news feed last night.
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Replying to @NetworkChuck
It recently fixed 8 very complicated bugs in my @SleyLanguage compiler in like 38 mins. This was an issue I'd been struggling with for two weeks. Claude came along and was like, "Sure I'll have that fixed by lunch." 😎
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Replying to @NetworkChuck
I find it so hard to put into words what makes a model feel good or bad these days, but I know that Opus 5.5 feels great
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Replying to @NetworkChuck
Yes it’s so much better than opus 5
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Replying to @NetworkChuck
I switched my Hermes over to Opus 5.5 There's a definite vibe here that I like. I'm using it for the day to day stuff on 'low' and it's still smarter and faster, and generally nicer to work with than Astra/Sol I think
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Replying to @NetworkChuck
much better than v5. I was using stuck using sonnet instead.
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Replying to @NetworkChuck
annoyingly yes, it passed mine too
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Replying to @NetworkChuck
Is the “model getting dumber” a real thing on Anthropic’s models? Will this happen to 5.5?
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Replying to @NetworkChuck
Opus 5.5 has to compete with Astra & GPT-6 Sol though.
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Replying to @NetworkChuck
When new models are released, they pass the vibes, wait till after 3 months. The bad sides of the model will be discovered. SHA Opus is nice
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Replying to @NetworkChuck
Agree Chuck, the model vibes
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Replying to @NetworkChuck
Very much the vibe
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Replying to @NetworkChuck
Coming from you that's basically a certification. Somebody get this model a coffee.
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Replying to @NetworkChuck
Passing your test is what counts. Welcome aboard. 😎
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Replying to @NetworkChuck
passing the vibe check is a low bar for software development
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Replying to @NetworkChuck
will get nerfed soon
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Replying to @NetworkChuck
definitely, and the limits are insane
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Replying to @NetworkChuck
so the aura is there 😎
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Replying to @NetworkChuck
And quick.
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Replying to @NetworkChuck
The vibes are definitely high with this release. We actually went deeper on this here:
AGTP
@AGTPinsights
Sep 22
Claude Opus 5.5 just became the latest rumored AI launch for today. Here's what you need to know. A BridgeMind post says Anthropic could ship Opus 5.5 within hours, claiming Fable 5.1-level intelligence at half the price. Anthropic has not announced the model. The rumor arrives after complaints that Opus 5 was slow, while Fable 5.1 can exhaust usage quickly for some Claude Max subscribers. Testing will be needed to verify the performance and price claims. Key numbers: - $200, the cited Claude Max plan price - $5/$25 per million input/output tokens, Opus 5's official API price Claude's official lineup still lists Opus 5 and Fable 5.1.
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Replying to @NetworkChuck
Tokens
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Replying to @NetworkChuck
🦾🦾🦾
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Replying to @NetworkChuck
It’s going to feel gutted in a couple of days
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Replying to @NetworkChuck
Yup been using it lately very impressed
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Replying to @NetworkChuck
For the next 2 weeks :)
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Replying to @NetworkChuck
the vibes are strong with this one
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Replying to @NetworkChuck
agreed!
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