Vals LegalBench 88.5% (top 2 of 150+ models) Source.
Cost
Pro is $20/month. Fable draws on usage credits. API is $10 per million input tokens and $50 per million output.
Free tier
Not on the free plan. Fable needs Pro or higher.
Privacy default
Anthropic says Free, Pro, and Max chats are used for training only if you allow it, and you choose at signup. The toggle has been reported as on by default, so check it. Settings, then Privacy. Turn off Help improve Claude. Source
When not to use it
Do not treat it as legal advice, or as a substitute for reading the clause yourself.
Starter prompt
Summarize the obligations, deadlines, and unusual clauses in this contract.
Google AI Pro is $19.99/month. API is $2 per million input tokens until Nov 30, 2026, then $4.
Free tier
Not on the free Gemini plan. Argon needs AI Pro or Ultra.
Privacy default
Yes for adults. Gemini Apps Activity is on by default, and those chats can be used to improve Google AI. Gemini Apps Activity, turn off Keep Activity. Safety review can still apply. Source
When not to use it
Skip it for privileged client files unless your Google account terms allow that use.
Starter prompt
Read this filing and list the risks, the numbers, and anything that changed.
Vals LegalBench 86.2% (top open-weights model on the board) Source.
Cost
Free with limits in the Kimi app. Self-hosting costs whatever hardware you use.
Free tier
Yes, in the Kimi app, with usage limits. Self-hosting has no per-message fee.
Privacy default
Yes. The Kimi consumer policy says prompts and files can be used to improve models. Ask Kimi support to stop training use if the app has no toggle. Source
When not to use it
Skip the hosted Kimi app for client-confidential documents.
Starter prompt
Extract every date, party, and payment term from this document.