RelyToolBench
We show this table for reference; we do not rank on it.
Tool-hallucination benchmark that checks whether a model selects and calls tools that fit the request.
Benchmark score on RelyToolBench — October 29, 2026
We compile the RelyToolBench rows from provider self-reports. The table contains 2 models. Nemotron 3.5 Bolt E4B has the highest published score at 69.29%, but the available coverage and evaluation setups do not establish a market leader. We do not use these results to rank models overall.
Nemotron 3.5 Bolt E4B
NVIDIA
Nemotron 3.5 Bolt E4B BF16
NVIDIA
2 modelsAgenticCurrentDisplay onlyUpdated October 29, 2026
Benchmark score table (2 models)
| Rank | Model / configuration | Score | Parameters (B) | Open / closed |
|---|---|---|---|---|
| 1 | Nemotron 3.5 Bolt E4BNVIDIA | 69.29% | Not reported | Open |
| 2 | Nemotron 3.5 Bolt E4B BF16NVIDIA | 63.16% | Not reported | Open |
How to read this leaderboard
Operator receipt: 2 sourced rows are currently displayable on this page; the highest published score among these 2 models is Nemotron 3.5 Bolt E4B at 69.29%, which does not establish a market leader.
Honest limit: Only NVIDIA-run results are stored so far, from one harness. Display-only and excluded from weighted ranking.
About RelyToolBench
Year
2025
Tasks
Tool-use requests
Format
Pass rate
Difficulty
Tool grounding and hallucination
NVIDIA reports it for Nemotron 3.5 Bolt E4B (October 23, 2026), run in its NeMo Gym harness, as the native/real pass rate in reasoning mode.
Freshness and provenance
Version
RelyToolBench 2025
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 RelyToolBench measure?
Tool-hallucination benchmark that checks whether a model selects and calls tools that fit the request.
Which model scores highest on RelyToolBench?
Nemotron 3.5 Bolt E4B by NVIDIA currently leads with a score of 69.29% on RelyToolBench.
How many models are evaluated on RelyToolBench?
2 AI models have published results on RelyToolBench in the BenchLM catalog.
Compare top models on RelyToolBench
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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