Needle: The benchmark your search engine can't memorize

matt4711 32 points 11 comments August 27, 2026
keenable.ai · View on Hacker News

Discussion Highlights (6 comments)

matt4711

One of the authors here. We have been seeing lots of benchmaxxing and leakage in standard web search benchmarks such as BrowseComp. We developed this live benchmark with daily/hourly sampled fresh queries matching real agentic search traffic to estimate actual search performance of different AI search providers.

terno

do you somehow control how non-trivial the queries are? The LLM generates them, right? what if every engine returns garbage, or on the other hand, handles them too well? building a benchmark like this in a genuinely fair way seems extremely hard to me. I’m very curious about the details, of course within what you can share.

Alexwortega

Do you think it will be possible to train on this bench?

MarkusQ

I wonder if search engines linked to human-use-case engines (e.g. google/bing) start at a disadvantage because they have been historically incentivized to break themselves to support their business models? It seems reasonable to suppose that "good at selling ads" ≠ "good at finding results".

mpalmer

The blog post appears to get confused and devotes its entire second half to pitching Keenable itself. If the idea is to build credibility for the new benchmark, this maybe was not the best choice. Search engines with their own indexes can retrieve documents no one else has. That means your agents will be able to answer questions previously unanswerable. Besides the clear AI smell, this nonsensical claim also plainly contradicts the methodology's key evaluation claim that the quality of an engine's results should be measured against how much it overlaps with the reranked aggregate of the other engines. The benchmark thus seemingly values an engine's ability to "answer unanswerable questions" at zero. Search engines should improve from being used in a way where the quality improvement is not an engineering push but a property of the architecture. That's a learning machine, and it's the only kind of system that can adapt to agents. Yeah? Care to cite anything for that?

daft_pink

so is this an independent search engine benchmark or a blog post from a search engine provider showing their search engine at the top of the benchmark? i'm a little bit confused as at first when I was reading it i thought it was a search engine benchmark, but it seems that keenable is at the top which i assume is related to the web domain owner? i've never heard of keeenable

Semantic search powered by Rivestack pgvector
4,692 stories · 42,351 chunks indexed