Kimi Hallucination Benchmark Hard with tools (Internal) (Kimi Hallu Bench Hard (tools))
We show this table for reference; we do not rank on it.
The hard split of Moonshot AI's internal factuality benchmark, run with tools and scored as the claim-level hallucination rate.
Benchmark score on Kimi Hallu Bench Hard (tools) — October 29, 2026
We compile the Kimi Hallu Bench Hard (tools) rows from provider self-reports. Kimi K3.1 Pro leads the table at 8.3%. We do not use these results to rank models overall.
1 modelAgenticCurrentDisplay onlyUpdated October 29, 2026
Benchmark score table (1 model)
| Rank | Model / configuration | Score | Parameters (B) | Open / closed |
|---|---|---|---|---|
| 1 | Kimi K3.1 ProMoonshot AI | 8.3% | Not reported | Pending |
About Kimi Hallu Bench Hard (tools)
Year
2026
Tasks
Hard internal work-task prompts with tools
Format
Claim-level hallucination rate
Difficulty
Factuality stress test
Fact-checking agents judge each factual claim; lower is better. Moonshot describes the set as a deliberately adversarial stress test. BenchLM stores the provider-published internal benchmark value as display-only launch evidence and does not treat it as an independently reproducible score.
Freshness and provenance
Version
Kimi Hallu Bench Hard (tools) 2026
Refresh cadence
Quarterly
Staleness state
Current
Question availability
Public benchmark set
BenchLM uses freshness metadata to decide whether a benchmark should still be treated as a strong differentiator, a benchmark to watch, or a display-only reference. For the full scoring policy, see the BenchLM methodology page.
Questions
What does Kimi Hallu Bench Hard (tools) measure?
The hard split of Moonshot AI's internal factuality benchmark, run with tools and scored as the claim-level hallucination rate.
Which model scores highest on Kimi Hallu Bench Hard (tools)?
Kimi K3.1 Pro by Moonshot AI currently leads with a score of 8.3% on Kimi Hallu Bench Hard (tools).
How many models are evaluated on Kimi Hallu Bench Hard (tools)?
1 AI models have published results on Kimi Hallu Bench Hard (tools) in the BenchLM catalog.
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
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