Head to head

Spellbook vs CoCounsel

Spellbook (Spellbook) and CoCounsel (Thomson Reuters) both sit in Legal. Spellbook shipped more tracked changes in the last 30 days (5 vs 0). Every value below comes from the latest crawl of the vendors' own pages.

AttributeSpellbook

Spellbook

CoCounsel

Thomson Reuters

SegmentLegalLegal
VersionACM2026 platform
Entry costCustom pricing structured around the number of team members. Offers a 7-day free trial.Enterprise contract pricing
Pricing tiersLaw Firms (Spellbook Suite) free · In-House Teams (Spellbook Suite) freeEnterprise free
Model stackGPT5 · OpusClaude · GPT-5.2
Context windowNot publishedNot published
Public API
Routes models
Changes / 30d50
OriginGlobalGlobal
CapabilitiesClause suggestions, Redlining, Risk flagging, Benchmarks, Playbooks, Contract Review, Contract Drafting, Contract ComparisonWestlaw grounded research, Document review, Deposition prep, Contract analysis, Drafting
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