Public LLM Evaluation // https://xitter.cf/t.co/rNS39rhVQ9 @8vc @BloombergBeta @pearvc @a16z @HRTVentures @nextladder

San Francisco, CA
Joined March 2024
For one weekend, we are benchmaxxing on purpose! Join us for the first Vals AI Hackathon on November 14–15 in San Francisco. We're giving 150 hackers 24 hours and a lot of compute to improve small models, challenge the frontier, and see what they can build. Track 1: Post Train a small model and see how high it ranks on three Vals benchmarks. Live leaderboard, compute from our sponsors. Track 2: Build a Your Own Eval on Valkyrie for tasks that still stump frontier models. We cover model and compute costs. Come meet the Vals team. Expect great prizes, notable guest speakers and fun side quests, including an optional cybersecurity CTF.
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Vals AI retweeted
More evaluation of cyber capabilities and risks is needed. If you are interested in this type of work, we are hiring! Join us: jobs.ashbyhq.com/vals-ai/01f…
i saw a lot of people being negative about the K3.1 pro release one point that was under discussed imo is that it's the first open lab that is pacing the frontier of open weight cyber capabilities, which makes it much easier (and create incentive) for other labs to make the right decision and do the same when they reach the same level of capabilities the remaining question is how to set the right level? underestimate it and open models become useless for defensive cybersecurity, leaving the world relying on US closed labs to spread defensive capabilities quickly, which is not realistic imo (i obviously wish them to succeed in this mission tho). overestimate it and you might get the catastrophic scenarios that anthropic and others describe this threshold can't rely on a few benchmarks or people alone, we need much more open cyber evaluation, more diverse third party evaluators, labs testing each other's models (including oss labs!) for this kind of capability
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The long-awaited Kimi K3.1 is here, and it is #1 on our Vals Index amongst open-weight models (#8 overall)
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Moonshot also cut prices by a third versus K3, to $2 / $10 per 1M tokens (the same price as Sonnet 5.5). It has a 1M-token context window, and we ran it at max reasoning effort, temperature 1, top-p 0.95 and 262k max output tokens.
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Today we’re releasing the Vals Legal Index, a measure of how well AI does legal work, weighted by each practice area’s share of U.S. law-office revenue.
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Legal shakes up the leaderboard: Claude Sonnet 5.5 leads the Vals Index but ranks 20th here, and GPT-6 Astra drops from fifth to 19th. Claude Opus 5.5 places seventh at $20.54 per test run. Wonder Full is 5.5 points ahead at $3.72, and MiMo V2.6 Pro is within 0.2 points at just $0.18.
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Does it matter where you run an open-weight model? Today we are releasing the Inference Provider Index. It compares first and third-party open-weight models for quality on agentic tasks in finance, coding, and legal industries. Unlike other inference benchmarks, we rerun it every two weeks to catch quality degradation, and we use agentic tasks, not single-turn multiple-choice questions. It covers over 650 hours of model runtime.
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Accuracy looked most alike across providers, but only in aggregate. Overall accuracy can hide domain-specific performance, so choose the provider that works best on your domain. Kimi K3 scored 60.6% on Legal through Baseten against 75.8% on Moonshot’s API. On Coding, a different provider beat the model maker’s own API.
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This matters more as open-weight models carry most of the traffic. They’ve made up more than half of all tokens on OpenRouter since April, and over 62% since July. Providers also change their serving stacks behind the same model name, and model makers have noticed. Moonshot publishes a verifier for third-party Kimi endpoints, and MiniMax published fixes after finding implementations that hurt its model in agent workflows. For the full methodology, visit vals.ai/benchmarks/inference…
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Liquid AI's d1-ultra is the only decision model to get all 1,960 ClaimBench claims right. That matches Opus 5.5, Sonnet 5.5, Haiku 5.5 and GPT-6.1 Sol.
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It costs $0.21 per 1,000 claims and answers in under a second. Haiku 5.5, the cheapest of those language models, costs 12x more and takes about 5 seconds. Liquid's earlier d1 missed 26 claims, and most of those were subtle contradictions, where one small wording change makes the claim wrong. d1-ultra got every one of them. It costs about twice what d1 does.
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