AI Vortex / Pricing / Cost calculator
What legal AI costs for your lawyers
Enter how many lawyers will use it, how many hours a month each one will, and the tool you are weighing. You get a range, from annual to monthly billing, and the page each price came from. A tool with no public price is left out of the total until you type the quote you were given. It never counts as zero.
1. Lawyers and hours
Count every lawyer who will have a login. Hours are the time each one expects to spend in the tool in a month.
2. Tool
Tick the ones you are comparing. For tools with no public price, enter the quote you received, in dollars per lawyer per month.
3. Optional: your hourly rate
Leave it empty to skip. With a rate, the result shows how many hours of work per seat per month the stack has to replace to equal its cost.
Where each number comes from
| Tool | Annual billing | Monthly billing | Source | Read |
|---|---|---|---|---|
| Claude Team, standard seat | $20 per seat per month | $25 per seat per month | Anthropic pricing page. Team plans cover 2 to 150 seats. | 2026-10-31 |
| ChatGPT Business | $20 per user per month | $25 per user per month | OpenAI pricing page. Annual price needs 2 or more users. | 2026-10-31 |
| Microsoft 365 Copilot Business (add-on) | $21 per user per month | $25.20 per user per month | Microsoft pricing page. Needs a Microsoft 365 Business plan, not counted here. Microsoft shows $18 on annual billing for eligible existing customers in year one (promotion to 2026-12-31). | 2026-10-31 |
| CoCounsel (Thomson Reuters) | Listed "starting at" $340.85 a month (Essentials), $882.30 (Practical Law with Essentials) and $1,694.90 (CoCounsel Legal) for in-house teams. The page does not say per user, per seat or per team, so it is not multiplied by your lawyers. Enter your own quote to count it. | Thomson Reuters plans page | 2026-10-31 | |
| Lexis+ with Protégé, Harvey, Spellbook | No verified per-seat public price. Counted only from a quote you enter (same figure in low and high). | See CoCounsel, Lexis, Harvey and Spellbook pricing pages. | 2026-10-26 | |
How the number is built
For a listed tool: the per-seat price for annual billing (low) and for monthly billing (high), times your lawyers (or the plan minimum if you are below it), times 12 for the year. For a quoted tool: your quote times your lawyers, times 12, in both ends. The total adds the tools that have a price. Cost per hour of use is the monthly cost divided by lawyers times hours. Hourly-rate hours are the per-lawyer monthly cost divided by your rate.
This is arithmetic on list prices, not a recommendation and not legal advice. Vendors change prices, and a real contract can differ on term, volume, taxes and usage. Check the source before you budget.