Vals LegalBench (LegalBench)
Vals AI legal benchmark with issue, rule, conclusion, interpretation, and rhetoric task views.
Data verified 32 confirmed releases in the last 30 daysSee provider release alertsHow BenchLM shows LegalBench
BenchLM mirrors the public Vals AI LegalBench leaderboard captured from https://www.vals.ai/benchmarks/legal_bench and updated by Vals on September 10, 2026. The snapshot preserves overall scores, uncertainty, latency, cost-per-test metadata, and task-level scores where Vals publishes them.
LegalBench is display only on BenchLM. Vals proprietary or Vals-hosted aggregate views are useful context, but BenchLM does not use them as weighted ranking inputs or as a replacement for benchmark-native source records.
Snapshot
LegalBench score on LegalBench — September 10, 2026
We mirror the published legalbench score view for LegalBench. Claude Fable 5 leads the public snapshot at 88.56%, followed by Claude Fable 5.1 (88.51%) and Gemini 3.1 Pro Preview (87.40%). We do not use these results to rank models overall.
Claude Fable 5
Anthropic
Claude Fable 5.1
Anthropic
Gemini 3.1 Pro Preview
high reasoning
143 modelsExternal benchmark mirrorsCurrentDisplay onlyUpdated September 10, 2026
LegalBench score table (143 models)
ScoreThe published LegalBench snapshot places Claude Fable 5 first at 88.56%. The third row is 1.16 points behind. The broader top-10 range is 1.86 points, so many of the published results sit in a relatively narrow band.
143 models have been evaluated on LegalBench. The benchmark falls in the External benchmark mirrors category. We keep external benchmark mirrors separate from the weighted global scoring system, so these results remain source-specific evidence. LegalBench is currently displayed for reference but excluded from the scoring formula, so it does not directly affect overall rankings.
About LegalBench
Year
2026
Tasks
Legal reasoning task views
Format
Accuracy score
Difficulty
Professional legal reasoning
BenchLM mirrors Vals LegalBench as display-only legal-domain evidence and does not use it in weighted rankings.
BenchLM freshness & provenance
Version
LegalBench 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.
FAQ
What does LegalBench measure?
Vals AI legal benchmark with issue, rule, conclusion, interpretation, and rhetoric task views.
Which model leads the published LegalBench snapshot?
Claude Fable 5 currently leads the published LegalBench snapshot with 88.56% legalbench score. BenchLM shows this benchmark for display only and does not use it in overall rankings.
How many models are evaluated on LegalBench?
The September 10, 2026 snapshot contains 143 AI models.
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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