How many tracked prints does the Legal Agent Benchmark family have?

Legal Agent Benchmark leaderboard — the family board.

5 TRACKED VARIANTS · 1 FIRST-CLASS BOARD

One family, 5 tracked prints. Scoring configs and splits of the base board render as sections of this page, each under its own honest label.

● LIVE DATA16 MODELS ON THIS BOARDLEADER CLAUDE FABLE 5 AT 13.3

#ModelVendorScoreVLast seen

01Claude Fable 5Anthropic13.32026-08-23

02Sonnet 5.5Anthropic11.72026-09-29

03Claude Opus 5Anthropic11.72026-08-23

04Claude Opus 4.8Anthropic102026-06-18

05Claude Opus 5.5Anthropic8.32026-09-23

06Claude Opus 4.7Anthropic7.12026-08-23

07Claude Sonnet 5Anthropic5.82026-08-23

08Claude Sonnet 4.6Anthropic5.42026-08-23

09Claude Opus 4.6Anthropic4.22026-08-23

10GPT-5.5OpenAI2.12026-08-23

11Gemini 3.5 FlashGoogle0.802026-08-23

12GPT-5.4OpenAI0.402026-08-23

13Gemini 3.1 ProGoogle0.002026-08-23

15GPT-5.4 miniOpenAI0.002026-08-23

◆ IV — INDEPENDENTLY VERIFIED · ◆ AA — AGGREGATOR · ◆ VA — VENDOR · ◇ SA — SOURCE-ATTRIBUTED

VARIANT5 models · best score per model

#ModelVendorScoreVLast seen

01Claude Mythos 5Anthropic16.92026-06-10

02Claude Mythos PreviewAnthropic13.42026-06-12

03Claude Opus 4.8Anthropic9.62026-06-12

04Claude Sonnet 5Anthropic8.92026-07-07

05Claude Sonnet 4.6Anthropic82026-08-12

THIN BOARDSunder 5 published models each — listed, never hidden

PrintLeaderScoreModels

Legal Agent Benchmark (Harvey's Held-Out Set)Claude Fable 513.34

Legal Agent Benchmark (LAB) all-pass rateClaude Fable 5.119.12

Legal Agent Benchmark (LAB) mean criterion-pass rateClaude Fable 5.190.82

THE FAMILY BOARD · EVERY PRINT LABELED · EVERY SCORE SOURCE-ATTRIBUTED ON ITS OWN LIVE BOARDAll leaderboards The frontier board Models by vendor