Claude Sonnet 5 – benchmark results

(artificialanalysis.ai)

32 points | by lucamark 1 hour ago

7 comments

  • CSMastermind 53 minutes ago
    Using Fable, pretty much every request hit some gate they had for no discernible reason. These provider-level rejections should be incorporated into benchmarks as 0s on the tasks since that's the experience you'll actually get using the model.
    • cjk 36 minutes ago
      I have heard this from a bunch of folks, but that was not my experience. For the couple days I was able to use it, I didn't hit a single gate, and I was using it pretty extensively (but not for anything security-related).
      • lucamark 33 minutes ago
        Never had rejections in the short time Fable was available
  • Tiberium 1 hour ago
    Seems like the model is incredibly inefficient at max reasoning, and even at high/xhigh it uses far more tokens than other models, including Gemini 3.5 Flash, GLM 5.2 and so on. GPT 5.5's efficiency in tokens is still unmatched.

    See also: https://cursor.com/cursorbench

    • trentor 58 minutes ago
      Same with opus nothing above medium has a reasonable improvement for the tokens spent.
  • nsingh2 51 minutes ago
    Cost per task is shockingly high. More expensive than Opus 4.8, second in place to Fable.

    Cost per task data is only available for max effort though, might just be very inefficient at that effort level.

  • DrProtic 47 minutes ago
    I feel like they repackaged Opus, slightly nerfed it, and reduced price per token.

    A release just to have a headline while Fable situation is getting resolved.

  • iLoveOncall 1 hour ago
    Half of the data is missing and the rest is inconsistent between different graphs and sections. Is the benchmark having Sonnet 5 generate the page and seeing how many hallucinations it has?
  • datakan 56 minutes ago
    I'm so sick of Anthropics usage caps and how their model devours tokens.
    • system2 52 minutes ago
      It starts with NVIDIA artificially and slowly releasing its tech. If the GPUs were cheaper, we would have better models by many other companies, and competition would take care of these greedy tactics.
      • lucamark 32 minutes ago
        Remember that such models are available to us thanks to NVIDIA GPUs
        • trentor 21 minutes ago
          Technology doesn't pause for 50 years just because you remove one key player. After their antics during crypto and now during AI I wished we had a different hardware provider at the helm.
  • atemerev 58 minutes ago
    Yet another mediocre model. Mostly irrelevant among open weights alternatives. Fable wen.
    • butterisgood 39 minutes ago
      I used sonnet five today to evaluate work I’m doing on an experimental programming language with an interesting concurrency model.

      I asked it to try to figure out why one of the examples wasn’t working.

      It read the implementation of the compiler and the runtime, found the bug, fixed it, fixed the example and the only thing I had to do manually is suggest a less silly name for a particular function.

      I would use sonnet 5 for coding … seems alright!

    • lucamark 36 minutes ago
      Agree. It is a mediocre model, expensive while not being a frontier