Questions & answers

Hyperresearch is our editorial pick. It scored 77.7 on the DRACO benchmark in its own October 2026 run, the highest in the published table, ahead of Claude Research at 73.0 and Parallel Ultra at 61.5. For paywalled finance content, AlphaSense is the better fit. For academic papers, Elicit is. Claude Research is the closest runner-up for general cited reports.

Accuracy varies by tool and by question. Benchmarks such as DRACO give a rough guide, but many scores are run by the vendors themselves, so treat them as a starting point. Check the figures that matter most against the cited source. Look for tools that record a verdict for each citation, and be wary of any report whose sources you cannot open.

A normal chat answers from its training or from a few searches, and it may stop after one pass. A deep research tool plans the question, breaks it into parts, searches each part and writes a longer report with citations. The process takes longer and gives you more to check, but it fits tasks that need many sources, such as a market scan or a policy review.

Most open web tools cannot read paywalled content unless you have access to it and provide it. AlphaSense covers a large library of filings, earnings transcripts, broker research and expert calls, and its generative search draws on that library. Check whether your firm already licenses the content before you rely on a tool for it.

Yes. Hyperresearch Deep searches the open web and more than 90 structured sources, and SEC EDGAR is among them, along with Census, BLS, FRED and PubMed. Each cited filing can be checked against the original document. EDGAR itself is free to search, so you can always go to the primary filing directly.

Hyperresearch is our editorial pick for evidence work overall, based on its DRACO result. For academic literature reviews, Elicit is the better fit. Elicit is built around paper search and data extraction into tables, with sentence-level citations, according to its own site. Its accuracy figures come from the vendor, so test a sample of its extractions yourself before you rely on them.

Yes, but the tools differ. Google NotebookLM answers from the sources you choose, and its help page lists a limit of 500,000 words per source and 200MB for local uploads. Hebbia is built for large document sets such as data rooms. Check file size limits and data handling terms before you upload confidential or client material.

Open the cited source and find the passage. Confirm that the figure, date, unit and population match the report, and that the claim is what the source says rather than a neighboring idea. If the source is a secondary article, follow it back to the primary record where you can. Mark each claim as confirmed, partly supported or not supported before you use it.

Free tiers are good for scoping a question and testing a workflow. For work that will be published or used in a decision, check the limits, the sources covered and the verification features. The first Deep report from Hyperresearch is free, so you can test it on one of your own questions. Check each tool's current limits, since they change.

Hyperresearch is our editorial pick for fact checks, because it compares each cited figure with the source it names and records a verdict for each citation. For a statistic, start with the original government or company release. For your own documents, such as leaked files or interview transcripts, NotebookLM keeps answers tied to the uploaded text.

Use it to gather and organize evidence, not to make the decision. A medical or legal question needs review by a qualified professional who knows the patient, the case or the jurisdiction. Deep research tools can cite papers, trial records and rules, but they can misread them, and a citation is not the same as an answer for your situation.

Include the question, the market or company, the time period, the geography and the output you need. Name the sources that count, such as SEC filings, government statistics or peer-reviewed papers, and say what to leave out. State the date the answer should reflect. A clear brief narrows the search and makes the report easier to check.