Elicit
Elicit is the only one of these tools that treats a literature review as a structured extraction job rather than a chat, which is exactly right for the work. The price assumes you are billing someone else for the hours it saves.
Pros
- Column-per-field extraction into a table is the correct shape for review work and rare elsewhere
- Free tier is unusually generous: unlimited search, summaries and full-text chat
- Every claim links back to the paper it came from
- API access is included from the first paid tier rather than sold separately
Cons
- The $49 to $169 jump is steep and Scale is priced for institutions, not labs
- Free tier's limits on the Research Agent and Reports are not quantified anywhere on the pricing page
- Extraction accuracy still needs spot-checking against the source PDF
- Coverage is paper-centric, so grey literature and preprint-heavy fields are thinner