Harvey LAB-AA - Tax: leaderboard

Artificial Analysis's implementation of Harvey's Legal Agent Benchmark restricted to the Tax practice area (about five of its 120 private tasks): agents read case documents and draft legal deliverables graded criterion by criterion by an LLM judge. Share of rubric criteria passed, 0-100 (%); higher is better.

Metric: Criterion Pass Rate (%). Source: artificialanalysis.ai. Saturation forecast: Around February 2027. 28 models tracked.

Top models

#ModelScoreOverall rank
1Muse Spark 1.3 (Max)94.65#31 (Muse Spark 1.3)
2Gemini 4 Argon (High)93.42#9 (Gemini 4 Argon)
3Muse Wonder (Max)91.19#18 (Muse Wonder)
4Muse Wonder Full (Max)90.97#12 (Muse Wonder Full)
5Mistral Large 490.75#106
6GLM-5.3 (Max)89.52#44 (GLM-5.3)
7Kimi K3 (Max)89.41#35 (Kimi K3)
8Gemini 3.8 Flash (High)88.41#30 (Gemini 3.8 Flash)
9GLM-5.3 Flash86.96#77
10DeepSeek V4.1 Flash (Max)85.73#37 (DeepSeek V4.1 Flash)
11Grok 4.7 (xHigh)85.62#26 (Grok 4.7)
12GPT-6.1 Sol (Max)83.28#7 (GPT-6.1 Sol)
13Claude Haiku 5.5 (Max)83.05#43 (Claude Haiku 5.5)
14MiniMax-M382.83#151
15GPT-6 Astra (Max)82.39#6 (GPT-6 Astra)

No result here: #3 Claude Opus 5.5, #10 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=harvey-lab-aa-tax · How It Works · Data refreshed daily, snapshot 2026-11-05.