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  • Hacker News
  • "Safety evals are an exception I believe eval startups can work when they're targeting safety benchmarks specifically. Researchers who want to work on safety evals tend to be ideologically opposed to working on capabilities, which means they don't migrate to post-training or applications due to monetary incentives."

    This is quite interesting. Seems more relevant in 2026.

  • Maybe it's not that valuable? No snark, but how much confidence do these evals provide?
  • Unfortunately, model quality is not the only criterion for users, and often not even the most important one. Adoption is also driven by marketing, UX, integrations, pricing, ecosystem, and a lot of other non-benchmark factors.

    Also, model providers are not interested to have their models compared head-to-head under identical conditions. And “Model A is better than Model B” is almost meaningless by itself. Better for what task? With what prompt? What inputs? What budget? What failure tolerance?

    It would be nice to have a place where users could run their own benchmarks, define evaluation criteria for their actual use cases, and make those runs verifiable by others.

  • What's an eval?
  • The way eval startup is defined here is very specific and doesn't cover successful eval farmwork/SaaS vendors like Arize, Promptfoo, deepeval, etc

    The author does have a point around generic benchmarks not being super valuable for companies. But evals should be seen as verifying design/behaviour constraints and can greatly aid product building, golden dataset creations and good software practices.

    It's just that the aim should be "how to generate your own good evals, even if it's hard" as not so much "here's some generic evals about models".

  • I have written a couple of eval harnesses to see how well LLMs drive software I have written. Basically I have data analysis software that I need LLMs to write code for. The code is complex, and I want to shape my APIs such that LLMs do a better job of quickly getting to the right answer. So I test different prompting and api surfaces, it's really easy to make quick gains this way and save your users from bugs. In this paradigm, I'm explicitly not testing different models, and I'm very interested to see how lesser models do with my software. Also for this type of testing, using the open weight models makes it faster, cheaper, and more reliable to test vs frontier models because I can trust that kimi-2.5-a-bunch-of-specs is going to behave more consistently than whatever tweaks Claude is making to Sonnet this week. API and prompting improvements seem to carry across the different models for gross improvements.

    I haven't looked that hard, but I can't find articles about this type of eval testing, curious to hear if others have approached writing APIs in this way.

  • "eval startups have a hard time finding customers, because clients have to be technical developers who want to build with APIs, but also not technical enough to run their own evals"

    To add to this, they have to be developers who aren't already using a fullstack observability solution, since it's fairly straight forward to add the eval startup featureset to an existing observability solution, and easier (plus cost effective) to just keep it all in one place.

  • I built a simple (free) eval tool for my own uses (Github Gists + Model Outputs) after not being able to find a suitable one in the market.

    The market's being split into

    1. Longitudinal LLM observability tooling

    Most eval startups have gone down the route of something more like being an observability platform for LLM inference. They want to be in your stack and running the inference to collect data on performance of it.

    They collect things like how often a model returns JSON that's out of spec or returns values that aren't expected as well as general timing and cost info.

    2. Safety Limiting / Pentesting

    Say you're doing something in the medical field or that's sensitive in some way and you want to figure out what model has the best outputs for your task that won't fly off the guardrails.

    3. Simple cost + performance + quality swapping

    This is what my tool does, basically lets you test if you _really_ need to be running that frontier model in a loop across a million records or if you'd be better with an older model or something else.

    https://evvl.ai/

    Example eval: https://giyd8stidy.evvl.io

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