Cross-model benchmark

Cross-Model Legal Benchmark

Name: Cross-Model Legal Benchmark
Creator: HAQQ

HAQQ's own measured benchmark scoring legal AI models out of 50 across legal task categories.

GemessenAktualisiert 2026-07-08

HAQQ measured 19 models across 11 legal task categories, each scored out of 50. HAQQ's own engine (Justinian) leads most categories, including 49/50 on the top-scoring tasks, but it's not a clean sweep: Spellbook edges it out on contract drafting (46 vs. 44), LexisNexis leads legal research (46 vs. 43), and ChatGPT scores highest on plain-language explanation (45 vs. 42). Practical takeaway: no single model dominates every task, so choice should follow the workflow, not a leaderboard rank.

Die Daten

Cross-Model Legal Benchmark - HAQQ's own measured benchmark scoring legal AI models out of 50 across legal task categories.
Model	Overall /50	Allgemein	Vertragserstellung	Juristische Recherche	Rechtserläuterung	Arbeitsvertrag	Memo-Erstellung	Lizenzvertrag	Gesellschaftervereinbarung	Beratungsvertrag	Handelsvertrag	NDA-Erstellung
HAQQ (Justinian)	45.8	49	44	43	42	48	44	46	47	45	47	49
Claude Fable 5	42.7	45	45	41	43	43	41	42	42	42	41	45
Claude Opus 4.7	40.8	43	43	39	39	39	41	43	40	39	42	41
Mike OS	39.1	42	39	35	33	41	39	38	41	40	40	42
Harvey	37.9	38	40	32	27	42	34	39	44	38	43	40
DeepSeek v4 Pro	36.8	40	36	38	38	35	37	36	36	36	37	36
CoCounsel	36.6	37	38	40	31	37	42	35	37	34	35	37
Legora	35.9	33	42	27	26	40	30	40	39	41	38	39
ChatGPT 5.5	35.3	39	34	34	45	33	35	32	32	35	34	35
Claude + legal plugins	33.9	35	35	33	35	34	33	34	34	33	33	34
Gemini 3.1 Pro	32.9	36	32	36	41	30	32	31	30	30	31	33
Spellbook	32.9	27	46	18	20	38	20	41	35	37	36	44
LexisNexis +AI	32.0	36	29	46	28	30	38	28	31	27	29	30
Grok 4.3	30.7	33	31	26	36	28	29	29	28	31	35	32
Perplexity Sonar	27.2	29	22	43	34	24	28	23	23	25	24	24
Clio Duo	25.6	26	27	24	23	28	23	25	24	29	26	27
Meta Llama 4	23.8	24	23	23	29	23	24	22	22	24	23	25
Mistral 3	22.4	22	25	20	25	21	22	24	20	22	22	23
Qwen 3 Plus	18.7	19	18	21	22	17	18	18	17	19	18	19

Gemessene Daten - vorverarbeitet aus HAQQs tatsächlichem Legal AI Index Nutzungsdatensatz (über 134.000 Datenpunkte in 30 Ländern) oder HAQQs eigenem /50 Cross-Modell Legal Benchmark.

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Cross-Model Legal Benchmark

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