Lexi sells AI drafting, research and review to law firms. Its invoices rise with drafting but not with the lawyer’s re-read. Alesis charges by credit, with £25 lasting about 17 days on average. The UK SRA says lawyers remain responsible for all work, AI or not. It received 42 AI misuse reports in a year. Firms track AI spend by matter but not the review time that follows. Review time is logged in practice-management systems without linking to the AI run. No vendor currently offers a field to join run IDs to time entries. Without that join, the full cost of an AI answer is split across two unconnected records. The missing link prevents firms from pricing or auditing the human review half of AI work.
What changed
AI spend was tracked only against drafting, not the human re-read of outputs.
What it unlocks
Linking vendor run IDs to firm time entries to show full AI answer cost.
- £25 lasts ~17 days for Alesis
- 42 AI misuse reports to SRA (Jul 2025–Jul 2026)
- £15 per drafting query in tokens
What you need to act on it
- matter-level usage codes in firm systems
- vendor records run IDs and matter codes
- firm records time entries with matter numbers
Sources