Benchmarks · agentic
Legal Research Bench
Evaluating agents on legal research tasks across diverse areas of US law
62 models · 63 results · updated 2026-10-27 · vals.ai ↗
Leaderboard
Gemini 4 Carbon high
More from this benchmark
1 published measuresTime per task87 results · lower is better
All results
63 rows| # | Model | Effort | Legal Research Bench | Subscription $ / task | API $ / task | Time |
|---|---|---|---|---|---|---|
| 1 | Gemini 4 Carbon | high | 55.8% | $8.74 | $8.74 | 52 min |
| 2 | Fable 5.1 | max | 55.3% | $3.59 | $23 | 57 min |
| 3 | Opus 5 | max | 55.3% | $0.12 | $6.76 | 31 min |
| 4 | Muse Spark 1.3 | max | 55.3% | $0.29 | $0.59 | 5.3 min |
| 5 | Gemini 4 Argon | high | 54.8% | $2.30 | $6.45 | 31 min |
| 6 | Opus 5.5 | max | 50.5% | $0.38 | $25 | 1.9 h |
| 7 | Fable 5 | max | 49.5% | $1.10 | $9.79 | 22 min |
| 8 | GLM 5.3 | max | 49.0% | $0.23 | $2.24 | 52 min |
| 9 | Sonnet 5.5 | max | 48.1% | $0.22 | $15 | 1.6 h |
| 10 | GPT-5.6 Sol | max | 48.1% | $1.19 | $22 | 1.3 h |
| 11 | Grok 4.6 | high | 48.1% | $0.16 | $1.53 | 25 min |
| 12 | Qwen 3.8 Max | max | 47.6% | $2.49 | $2.49 | 1.0 h |
| 13 | Grok 4.7 | xhigh | 47.1% | $0.46 | $4.92 | 21 min |
| 14 | MiMo V2.6 Pro | high | 47.1% | $0.15 | $0.18 | 30 min |
| 15 | Kimi K3 | max | 46.2% | $0.27 | $3.47 | 13 min |
| 16 | DeepSeek V4.1 Flash 1017 | max | 45.2% | free | $0.70 | 35 min |
| 17 | GLM 5.3 Flash | max | 45.2% | free | $0.12 | 51 min |
| 18 | Haiku 5.5 | max | 43.8% | $0.035 | $1.65 | 1.4 h |
| 19 | Opus 4.8 | max | 43.8% | $0.049 | $2.82 | 12 min |
| 20 | Muse Spark 1.2 | xhigh | 43.8% | $0.25 | $0.51 | 5.1 min |
| 21 | Sonnet 5 | max | 41.8% | $0.047 | $2.72 | 26 min |
| 22 | DeepSeek V4.1 Flash | max | 41.3% | $0.015 | $0.25 | 12 min |
| 23 | GPT-5.6 Terra | max | 41.3% | $0.44 | $7.91 | 1.2 h |
| 24 | DeepSeek V4 Pro 0813 | max | 40.9% | $1.09 | $1.09 | 42 min |
| 25 | Muse Spark 1.3 | xhigh | 40.9% | $0.33 | $0.65 | 8.8 min |
| 26 | GPT-5.5 | xhigh | 40.4% | $0.41 | $7.40 | 38 min |
| 27 | GPT-6 Astra | max | 39.4% | $0.91 | $11 | 25 min |
| 28 | Gemini 3.8 Flash | high | 38.9% | $0.066 | $1.63 | 5.4 min |
| 29 | Opus 4.7 | max | 38.5% | $3.06 | $3.06 | 8.5 min |
| 30 | Sonnet 4.6 | max | 38.5% | $2.30 | $2.30 | 16 min |