No endless tables — just the differences that matter, and a clear call. Pick two tools and see who takes it.
| Tool | ||
|---|---|---|
| Pricing | Freemium | Freemium |
| Rating | ||
| Category | Research | AI Search Engines |
| Description | Consensus is an AI-powered academic search engine that uses language models to find and synthesize answers from peer-reviewed research. Ask questions in plain English and get evidence-based answers with citations from scientific papers. | Perplexity AI is an answer engine that combines real-time web search with large language models to produce cited, sourced responses. It targets researchers, students, and professionals who need accurate answers with traceable evidence rather than raw search results. Unlike traditional search, it synthesizes multiple sources into a coherent answer with inline citations. |
| Natural language search | Supported | Not supported |
| AI-synthesized answers | Supported | Not supported |
| Consensus meter (agreement level) | Supported | Not supported |
| Citation extraction | Supported | Not supported |
| Study snapshots | Supported | Not supported |
| 200M+ papers indexed | Supported | Not supported |
| Claim verification | Supported | Not supported |
| Research synthesis | Supported | Not supported |
| Real-time web search with inline citations | Not supported | Supported |
| Pro Search mode for multi-step research queries | Not supported | Supported |
| Spaces: shareable research workspaces | Not supported | Supported |
| File upload and analysis (PDFs, images) | Not supported | Supported |
| Focus modes: Academic, YouTube, Reddit, News, Wolfram Alpha | Not supported | Supported |
| API access with sonar-pro and sonar models | Not supported | Supported |
| Collections for organizing research threads | Not supported | Supported |
| Mobile apps for iOS and Android | Not supported | Supported |
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| Website | Visit | Visit |
