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Claude Sonnet 5

anthropic.com

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Re: Claude Sonnet 5

#21

Post by mchusma »

This is much more interesting of a model at $2/$10 (their launch pricing) than at full price. There are many competing models at around this level of performance.

I also like that the difference between low, medium, high, xhigh seems more spread, which is actually a good thing for people trying to tune applications. Running Sonnet 5 on low with the launch pricing makes this potentially a better fit than Haiku or open source models for some tasks. I don't think it will make sense at full price.

Re: Claude Sonnet 5

#22

Post by beernet »

Anthropic's run on the model and product side of things is highly impressive. They got Sam A. punching the air consistently, which is well-deserved and self-inflicted above all.

Re: Claude Sonnet 5

#24

Post by Scroll_Swe »

I don't pay so I'm glad for the upgrade. I usually use Gemini, Mistral Le Chat (Vibe...) or Deepseek as they have way more generous free limits and I can basically spam forever.

Re: Claude Sonnet 5

#25

Post by roughly »

mcbuilder wrote: post #13
chipgap98 wrote: post #6

Interesting that tasks on extra high cost almost the same as Opus 4.8 with a slightly worse performance

LRMs are plateauing for sure, not that there won't be gains to be had in the future, but it's not like the era of rapid progress that was the past year any more.

A great many people were predicting this would be the case a year ago and being told they were wrong and to get on the boat.

Re: Claude Sonnet 5

#26

Post by satvikpendem »

> Evaluations also show that it has a much lower ability to perform cybersecurity tasks than our current Opus models.

Why would they brag about something like this? It's like they know people want to use models to perform cybersecurity tasks yet knowingly deny them the ability.

And Opus 4.8 is still cheaper for a higher pass rate (much less open weight models like GLM 5.2) so not sure why I'd use Sonnet except on the low effort level for I suppose trivial tasks where I want it to work only 50% of the time judging by the graph. The pricing doesn't really make any sense.

Re: Claude Sonnet 5

#28

Post by theLiminator »

Seems like the way to go for any smaller models is to only use the low reasoning levels, and for anything where you'd want it to reason harder, to just use a larger model.

In effect, high reasoning only makes sense when you're using the frontier model and need extra performance (higher levels of reasoning are never pareto optimal unless you're at the largest model size).

Re: Claude Sonnet 5

#29

Post by doctoboggan »

The cost per task chart is telling me that I should _never_ use Sonnet 5 above medium effort level - Opus always performs better for a given cost. So I guess the takeaway is that if Sonnet 5 medium isn't good enough for you, switch models, not effort levels.
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