AI Research
Consensus
Search engine for scientific evidence — AI answers backed by real research.
Consensus solves a specific frustration: you search a health or science topic online and get a wall of opinion, advocacy and SEO content, not actual evidence. Type a research question into Consensus and instead of links, you get the Consensus Meter — a bar showing what percentage of published studies on that question reach a similar conclusion — plus GPT-4 powered summaries of each individual paper. Ask whether magnesium supplementation improves sleep quality and you get a breakdown of what eight peer-reviewed studies actually found, not what a supplement company's blog says. For health, nutrition, psychology and social science questions, it cuts through noise faster than any other tool.
The limitation is scope by design. Consensus only indexes published academic research, so it has no answer for current events, technology questions or anything that lives outside peer-reviewed literature. Some niche topics return only three or four papers — enough to see a direction but not enough to be definitive. The Premium tier at $9.99/month unlocks unlimited searches, citation exports and the ability to save paper lists, which matters for anyone doing a proper literature review. The free plan allows 20 searches a month, which is enough to evaluate whether it fits your workflow before committing.
Toolsift Verdict
Consensus is the tool to reach for when you need to know what the scientific literature actually says on a question — not what bloggers think. At $9.99/month, it's the most affordable way to cut through health and wellness misinformation.
✓ Pros
- ✓Consensus Meter shows scientific agreement at a glance
- ✓AI summaries of individual papers
- ✓Great for health and wellness questions
- ✓Clean, fast interface
✗ Cons
- ✗Limited to published research — no news or web
- ✗Some niche topics have too few indexed papers
From the blog
Perplexity AI Review 2026: The Search Engine That Actually Cites Its Sources
Perplexity answers questions with real-time web sources and citations. We tested it extensively against Google and ChatGPT.
Best AI Research Tools in 2026: Find Answers Faster
Tools that help you find information faster and extract insights with citations.