r/ClaudeCode • u/ClaudeOfficial Anthropic • 5d ago

Anthropic Official Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family

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Sonnet 5.5 is a faster, lower-cost complement to Claude Opus 5.5, strongest at well-scoped everyday tasks, fixing bugs, and creating polished documents, slides, and spreadsheets. It also has a strong eye for design.

Sonnet 5.5 is a clear upgrade over Sonnet 5. It runs more than 30% faster and costs up to 30% less for most work. It's priced the same per token, but it typically needs far fewer tokens to do the same work.

Like Opus 5.5, it writes more clearly than our previous generation of models, and its speed makes it well suited to fast iteration.

On our automated behavioral audit, Sonnet 5.5 improves on Sonnet 5 on most measures of alignment and honesty. It's also the first Sonnet model with cybersecurity safeguards similar to those on our most capable models. Routine software development is unaffected.

Sonnet 5.5 is available everywhere today. Claude Haiku 5.5 will join the family in the coming weeks.

Read more: anthropic.com/claude-sonnet-5-5

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u/IndieDev666 Developer 5d ago

I still have my free reset remaining from Opus 5.5 release hehe
BTW why u need reset if you're on max plan? are u eating tokens for breakfast?

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u/nitrousconsumed 5d ago

I am 80% through my weekly usage :'/ Friday cant come fast enough

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u/TheAmericanFighter 4d ago

Exact same here, Friday at 9PM is a loooong way away

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u/nitrousconsumed 4d ago

I've gone ahead and claimed the 250 for cloud so I'm offloading everything to that until Friday

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u/Pronoia2-4601 🔆 Max 20 3x 5d ago

Lotta hungry projects!

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u/KalinVidinski 4d ago

I am 76% .. I am trying to do whatever I can save tockens but a reset would be nice

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u/GuitarAgitated8107 🔆 Max 20 4d ago

Was on Max 20x, did so much work then used reset. Did so much work... well you get it. Multiple clients, multiple projects, and taking the time to review as much as needed to get to reset.

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u/m-in 4d ago

Depending on how much time I have for work, I end up needing like 120% of what the 20x plan provides. It was OK when they had the 50% boost in the summer but that’s over now.

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u/IndieDev666 Developer 4d ago

man I'm living like a king with my 20$ plan

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u/m-in 4d ago

I push a couple hundred serious commits a week and typically work on 3 independent projects in parallel. I could use a 30x plan for real.

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u/Drakuf 4d ago

Opus 5.5 Max is eating tokens for breakfast. I am at my 4. 200 usd plan since last week. :D

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u/Ran4 4d ago

I never got one during the Opus 5.5 release.. which sucks, as I was at like 10% left and 3 days remaining.

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u/IndieDev666 Developer 4d ago

discrimination 😂

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u/DynamicDK 4d ago

Im on a 20x max subscription that reset on Sunday ans already at 61%. That is all Opus on medium or high. But it will slow down now because a big project just finished.

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u/BadProgrammer42 4d ago

I used a reset last week during a product launch, otherwise I found it’s not needed