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Claude · Last 7 days

Claude Sonnet 5.5

0–100 · higher means more positive community experience, not benchmark performance.

Updated 2026-10-01 09:27 UTC · 2026-09-24 – 2026-10-01 UTC
Experience score65.4/100113 comments in 7 days

What people think

One user recommends using Claude Sonnet 5.5 high as the implementer in a coding workflow supervised by Opus 5.5. One user states they wouldn't trust Sonnet to provide any architecture or design advice.

About the sample and scores

As of 2026-10-01 09:52:04 UTC, Claude Sonnet 5.5 in the Claude family has 113 explicitly attributed community comments in the last 7 days; its community score is 65.4/100. Available category scores include General text 67.2/100 (n=55); Coding 75.0/100 (n=8); Reasoning 63.6/100 (n=23). Scoring method and sources

Community reviews

Selected comments from the last 7 days. The balance of excerpts does not represent the share of positive reviews.

26 selected excerpts

Community reports about limits cannot establish official allowances.

NegativeReasoning

“I wouldn't trust sonnet to do give me any architecture/design advices.”

NegativeGeneral text

“This thing is inferior to Opus 5.5 in every way, and it's also learned the essence of how domestic small-parameter exam-prep model makers inflate their scores with flashy 'thundering deep thinking'.”

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这玩意儿哪里都不如Opus 5.5,也是给A畜学到国产小参数做题家模型雷霆大思考刷分的精髓了

PositiveReasoning

“a Sonnet 5.5 high implementer”

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From the same comment ↗

So I don't know what's your process but I would suggest models wise to just use Opus 5.5 high or medium as the orchestrator to supervise a Sonnet 5.5 high implementer and use 6.1 sol xhigh (or medium if you notice xhigh is not sustainable for you) as a reviewer.

NegativeGeneral text

“If you're using the API, then it's worthless. Set the thinking level too low and you're an idiot, set it too high and the costs approach Opus-level.”

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如果你是用API,那就是路边一条,思考等级定低了就是傻狗,定高了成本就朝Opus那边去了

PositiveSpeed & latency

“She types too fast, keeping up with her BS is hard”

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丫抠字儿太快了 找她吹牛逼容易跟不上思路

NegativeReasoning

“Relying on unlimited extended thinking to achieve so-called higher intelligence feels like it might not be the right direction.”

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依靠无限制拉长思考来换取所谓的更高智商,感觉可能不是正确方向

PositiveSpeed & latency

“opus 5.5 and sonnet 5.5 are much faster too”

PositiveGeneral text

“Sonnet 5.5's aesthetic sense is indeed high-class at first glance”

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sonnet5.5审美确实一眼高级

NegativeReasoning

“Follow up, found hallucinations”

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追问,发现有幻觉

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I discussed a JEV-related question and found that Company A's models now have a certain characteristic.

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我拿一个跟JEV相关的问题讨论了一下,发现A家的模型现在有个特点。

PositiveCoding

“In the agentic command-line programming test Terminal-Bench 4.0, it took first place globally with a high score of 70.6%, a leap compared to Sonnet 5's 10.3%”

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在智能体命令行编程测试 Terminal-Bench 4.0 中,它以 70.6% 的高分拿下 全球第一 ,相比 Sonnet 5 的 10.3% 属于跨越式暴涨

PositiveSpeed & latency

“Output speed increased by 30%”

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输出速度快了30%

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From the same comment ↗

The price is the same as the previous generation Sonnet5, 50% cheaper than Opus5.5, output speed increased by 30%, and the cost per task is up to 30% cheaper than the previous generation. If I make a table it will be more obvious.

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价格方面与上一代sonnet5一样,比opus5.5便宜了50%,输出速度快了30%,每项任务的成本比上一代最多便宜30%,我做一个表格就能更明显看出来了。

NegativeUsage limits

“Company A's account is "delicate" — every now and then it completely blocks your mainland China IP.”

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A社的账号"娇贵"啊,隔三岔五给你大陆ip全干挺了

PositiveUsage limits

“Just discovered Sonnet 5.5 is actually quite durable”

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才发现Sonnet5.5还挺耐用啊

NegativeSpeed & latency

“Thinking uses more tokens, making it slower”

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思考用更多token导致更慢

PositiveUsage limits

“Free users can also use Sonnet 5.5 a few times, whereas over there free users can only use Luna.”

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免费用户也能用几下sonnet5.5,反观隔壁免费用户只能用luna

NegativeSpeed & latency

“In the same thinking tier, Sonnet 5.5 consumes more tokens and is less efficient than Opus”

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同思考档位的sonnet 5.5 比 opus 消耗token更多,效率更低

PositiveUsage limits

“The unit price is only half of Opus, the quota is even more generous, and it also learned O company's habit of occasionally issuing reset allowances.”

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单价只有Opus一半,额度还给得更多,还学会了O社时不时发重置次数

PositiveCoding

“sonnet 5.5 looks like the perfect tool to help with code maintenance”

NeutralReasoning

“What the OP stated happens with Fable 5.1, Opus 5.5, Sonnet 5.5 too.”

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Original post ↗

If Astra is that great, how come its code introduces so many bugs? Give Astra a complicated task on Ultra, and then after give the prompt "review" - you will get about 5 problems.

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