Kimi Hallu Bench D
AI benchmark · Knowledge
What is Kimi Hallu Bench?
Kimi Hallu Bench is Moonshot AI's internal benchmark that stress-tests factual accuracy, scoring models by claim-level hallucination rate on challenging prompts, with and without tools.
General capability mostly
“On Kimi Hallu Bench Hard bench, an internal benchmark designed to stress-test factual accuracy, its claim-level hallucination rate fell from 23.4% for K3 to 8.3%”
kimi.ai/blog/kimi-k3-1-pro ↗
Who built Kimi Hallu Bench
Led by Moonshot AI (Kimi).
Lineage
Benchmarks this one is built on and built from: versions, subsets, extensions and the indexes that combine them.
Derived benchmarks
Kimi Hallu Bench Hard extension
“On Kimi Hallu Bench Hard bench, an internal benchmark designed to stress-test factual accuracy, its claim-level hallucination rate fell from 23.4% for K3 to 8.3%”
kimi.ai/blog/kimi-k3-1-pro ↗
Tier D
Long tail: little or no usage data yet.
How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.
- no usage data
- in curated RL directories (1 pt)
On X · unclear, low buzz, from 2 posts about Kimi Hallu Bench in the last month
Mentioned only in coverage of Kimi K3.1 Pro's launch, with a caveat that it is Moonshot's own benchmark rather than an independent evaluation.
How we got to tier D
- Adoption: no usage data. Tier D.
- On X: unclear, low buzz. “Mentioned only in coverage of Kimi K3.1 Pro's launch, with a caveat that it is Moonshot's own benchmark rather than an independent evaluation.” No move.
- In curated RL directories: 1 point, a floor of none.
- Confirmed: a line from its own site or paper places it.
A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.
Where Kimi Hallu Bench sits
Its domain on the map, live. Hover a logo for its name; click to open it. Open it on the full map
Next: browse all benchmarks. Entry from the RL Research daily scrape of public sources, 2026-10-29 snapshot.