reasoning benchmark
MASK Leaderboard
MASK is a collection of 1000 questions measuring whether models faithfully report their beliefs when pressured to lie.
Updated Sep 5, 2026
Models1
Model coverage1
MetricScore
EvidenceB
MASK Ranking
Higher score ranks better on this benchmark.
Sort by
Rank | Model | Score | Percentile | Participants | Evidence | Evaluated |
|---|
| Rank01 | ModelXA | Score51.00% | Percentile100.00% | Participants1 | EvidenceC | Evaluated |
MASK Highlights
The leading models and scores on this benchmark.
The Top AI Models for MASK
The first five results on this benchmark, with official price and output speed added where the model identity can be matched.
Ranking basisThis mask AI model leaderboard uses descending score in the benchmark original unit. The leaderboard ranking keeps matched price and speed data separate from benchmark evidence.
- 01XAxAI
- Score
- 51.00%
- Speed
- Up to 80.00 tok/s via xAI
Strengths
- Ranks #1 of 1 compared models
- 100th percentile on this benchmark
- C evidence result
Considerations
- This result measures MASK, not total model capability
Selection summary
Best AI Models for MASK
Grok-4.1 Thinking currently leads MASK with 51.00%. It is the top model on this specific benchmark, while the best LLM for the broader task should also be checked against other benchmarks, price, and runtime.
Use this leaderboard with the supporting benchmark results and coverage details above. A leaderboard position summarizes the selected ranking signal; it does not replace workload-specific testing.
What is MASK?
What MASK measures and how its scores work.
MASK is a reasoning benchmark consisting of 1000 questions about whether models report their beliefs faithfully under pressure to lie.
MASK measures the rate at which a model lies, defined as knowingly making false statements intended to be received as true; lower dishonesty rates indicate better honesty.
Scores are shown in ratio. This benchmark is not independently verified and has an evidence level of B.
- Family
- MASK
- Modality
- text
- Primary category
- reasoning
- Score direction
- higher
- LLMBoard eligible
- No
- Evaluation key
- overall
LLM Stats. Benchmark scores retain their original unit. Overall score eligibility is shown separately.
FAQ
Common questions about MASK.
Which model scores highest on MASK?
Grok-4.1 Thinking is currently ranked first with 51.00%.
What are the top three models on MASK?
The current leaders are Grok-4.1 Thinking (51.00%).
Which MASK model has the lowest official input price?
No matched official input price is currently available.
Which models are fastest among MASK results?
The fastest matched records are Grok-4.1 Thinking (80.00 tok/s via xAI).
Does the highest score result prove overall model quality?
No. This benchmark measures one defined capability or task. The overall LLMBoard score uses a separate aggregation across eligible benchmark evidence.