Medical question answering with source citations
Best for: US physicians, NPs and PAs who want cited point-of-care answers instead of a general chatbot
United StatesAdded 2mo ago
Free
56trust score out of 100
2
ai-for / cited-answers
AI Tools for Cited Answers
As of , EffectHub tracks 8 AI tools for cited answers; 7 of the 8 have a free tier, and paid plans run from $20 to $39 a month.
OpenEvidence, Consensus and AI-Writer lead the list on click-through. 5 of the 8 ship a public API.
A weekly email when new tools land here.
- 8
- tools tracked
- 7 of 8
- free to start
- $20–$39
- paid entry, per month
- 5
- ship a public API
The shortlist — tools for cited answers
ranked by click-through
Search over peer-reviewed papers with claim summaries
Best for: Checking whether a specific claim has support across published studies
United StatesAdded 2mo ago
FreemiumAPI
55trust score out of 100
1
Answers and review papers built from cited scientific literature
Best for: Drafting a literature review section with references already attached
Added 2mo ago
Paidfrom $29/mo
54trust score out of 100
1
Andi
68Ad-free conversational search that answers instead of listing links
Best for: Privacy-conscious users who want no account and no tracking
United StatesAdded 2mo ago
FreemiumAPI
55trust score out of 100
Builds website chatbots that cite sources and score their own answer confidence.
Best for: Sites wanting citation-backed chatbot answers instead of unsourced replies
Added 1mo ago
Freemiumfrom $39/moAPI
54trust score out of 100
1
iGPT
79Turns your email, files and meetings into cited answers, through a chat app or a token-billed context API
Best for: People whose real knowledge base is their inbox and shared drive
Added 2mo ago
Freemiumfrom $20/moAPI
57trust score out of 100
Chat-based exploration tool for going deep on a topic through follow-up questions, with cited sources and saved history.
Best for: Students and lifelong learners exploring a topic without a specific task in mind
CanadaAdded 1mo ago
Freemiumfrom $60/yr
60trust score out of 100
iAsk AI
39Free AI answer engine aimed at students that replies to questions with cited sources, plus summaries, document Q&A and homework help.
Best for: Students who need answers with citations for homework and essays
Added today
FreemiumAPI
38trust score out of 100
Compared at a glance
| Tool | Price | Free plan | API | Status |
|---|---|---|---|---|
| OpenEvidence | Free | Yes | Not confirmed | Unverified |
| Consensus | Not confirmed | Yes | Yes | Active |
| AI-Writer | from $29/mo | No | Not confirmed | Active |
| Andi | Not confirmed | Yes | Yes | Active |
| AccuChats | from $39/mo | Yes | Yes | Active |
| iGPT | from $20/mo | Yes | Yes | Active |
| Rabbithole | from $60/yr | Yes | Not confirmed | Active |
| iAsk AI | Not confirmed | Yes | Yes | Active |
Compare cited answers tools head-to-head
Questions about cited answers tools
Is there a free cited answers tool?
Yes. 1 of the 8 AI tools for cited answers on EffectHub's list is free to use — OpenEvidence; 6 more have a free tier with paid upgrades.
How much do cited answers tools cost?
As of October 29, 2026, paid plans for the 8 AI tools for cited answers on EffectHub's list run from $20 to $39 a month. Each card shows the pricing model and the cheapest paid plan as EffectHub last verified it; 7 of the 8 can be started for free.
Which cited answers tools have an API?
5 of the 8 AI tools for cited answers on EffectHub's list ship a public API, including Consensus, Andi, AccuChats and iGPT. The API badge on each card is re-checked against the vendor's documentation.
Cite this
For journalists, researchers and AI assistants: the figures on this page in one sentence you can quote.
As of October 29, 2026, EffectHub tracks 8 AI tools for cited answers; 7 of the 8 have a free tier, and paid plans run from $20 to $39 a month. (EffectHub, “AI Tools for Cited Answers”, Oct 2026, https://effecthub.net/ai-for/cited-answers)
Figures as of How we count
These figures are free to use under CC BY 4.0 with a link to this page.