AI that cites real sources
Tools that search a real paper index, like Consensus, Elicit, Semantic Scholar, Google Scholar and Scite, cite papers that exist. Chat AIs like ChatGPT, Claude and Gemini cite real pages when they search the web, but can invent references when they don't. Either way, a real paper may not support the claim: open it and check.
Where the citation comes from decides what can go wrong
Group A searches a scholarly database, so every citation points to a record that exists. Group B is chat AI: citations come from web search, your uploads, or the model's own text. Without a search step, a chat AI can produce a reference that does not exist.
Undermind, Ai2 Asta and SciSpace also search paper indexes. We list them by name only until their dossiers are public.
| Tool | Cites from | Watch out for (from our dossier) |
|---|---|---|
| A · ConsensusDossier | See dossier. | AI summaries can over-compress uncertainty |
| A · ElicitDossierSource 1 | Papers; the free Basic plan includes “Unlimited search across more than 138 million papers”. | Pricing jumps quickly from free to Pro/Scale |
| A · SciteDossierSource 1 | Citation statements from papers; lists “1.6B+ Citations”. No free plan: a 7-day free trial, then from $12 a month (Basic). | Citation classification can misread nuance |
| A · Semantic ScholarDossierSource 1 | Free; says it indexes “over 200 million academic papers”. | TLDRs can hide methods/caveats |
| A · Google ScholarDossier | Free academic web index; no index size published. | Coverage broad but opaque |
| B · PerplexityDossier | See dossier. | Deep Research can sound comprehensive while missing primary/paywalled sources |
| B · GeminiDossier | See dossier. | Search grounding can cite SEO/support/forum/stale pages |
| B · ChatGPTDossier | See dossier. | Breadth can hide weak methodology |
| B · ClaudeDossier | See dossier. | Research/web answers still need source rejection |
| B · Gemini Notebook (formerly NotebookLM)DossierSource 1 | Your uploaded sources; per Google, “If the answer isn't in the source material, it won't provide a response.” | Click every chip before paraphrasing into graded writing |
Real is not the same as supporting
A paper index guarantees that the paper exists, not that it says what the summary claims. Summaries can drop caveats, and a citation can point to the right paper for the wrong sentence. That check is yours whichever group you use.
The two-minute check
1. Search the exact title in Google Scholar or Crossref. 2. Match authors, year and DOI. 3. Open the paper and find the sentence the answer relies on. 4. If any step fails, drop the citation.
Questions this guide answers
Every answer below is assembled from the dated fields on this page. Nothing is written separately for search.
Which AI gives real sources?
Tools that search a paper index: Consensus, Elicit, Semantic Scholar, Google Scholar and Scite. Their citations exist; you still need to check that each one supports the claim.
Is there a free AI that cites sources?
Yes. Elicit has a free Basic plan, and Semantic Scholar and Google Scholar are free to search; for Consensus, see the dossier. Scite is not free: it offers a 7-day trial.
Does ChatGPT give real sources?
When it searches the web, it links real pages, which may still not support the sentence. Without search, it can produce references that do not exist. Check every one before citing it.
What is a good Consensus alternative?
Elicit and Semantic Scholar also search paper indexes. Undermind is another paper-search option. We have not ranked them against each other.
Is there a free Scite alternative?
Not one that does the same job in our atlas: no other tool we cover classifies citation statements the way Scite does. Google Scholar's “Cited by” list is free, but you read the citing papers yourself.