best for: Search plus everything else
ChatGPT's search and Deep Research now cover most of Perplexity's core loop, inside the most complete product in the category: agents, voice, image generation, Projects. Citations are less central to the experience than Perplexity's, which is the honest trade.
pricing · Free; Go $8/mo; Plus $20/mo; Pro $200/mo.
02 Google's assistant and bundle best for: Deep Research on the free tier
Deep Research is available free, the paid tiers carry a million-token context window, and the Google bundle (Workspace, storage, YouTube) does the rest. Search grounding is Google's own; conversations stay strictly linear.
pricing · Free; AI Plus $4.99/mo; AI Pro ~$20/mo; AI Ultra $100 to $200/mo.
03 The source-grounded notebook best for: Answers from your documents, not the web
Where Perplexity grounds answers in live search, NotebookLM grounds them in sources you choose, up to hundreds of documents per notebook, with citations to the exact passage plus audio and video overviews. For literature reviews and internal document work it beats a web engine outright.
pricing · Free; scales with the Google AI plans from $7.99/mo.
04 xAI's fast frontier models best for: Real-time social and news intelligence
DeepSearch produces cited research like Perplexity does, and the native X firehose gives it a live data source no other tool has. The plan ladder is confusing and rate limits shift, but for what-is-happening-right-now questions it is the strongest option here.
pricing · Free; SuperGrok Lite $10/mo; SuperGrok $30/mo; Heavy $300/mo.
05 Claude, GPT, and Gemini on one canvas best for: The thinking between the searches
No live search, deliberately: NodePad is where the found facts become work. Every conversation about a problem lives on one canvas; you fork hypotheses, reference exact messages with @, and merge threads into one draft, with Claude, GPT, and Gemini picked per message and each seeing exactly the context you assembled. Many people run it beside a search tool rather than instead of one.
pricing · Free on community models; paid plans from $5/mo, every paid plan reaches every model.
06 Self-hosted UI with web-search plugins best for: A self-hosted approximation
With a search provider plugged in, a self-hosted Open WebUI gets you cited web answers on your own infrastructure with the models you choose. More assembly required than anything else on this list; that is the appeal.
pricing · Free and open source; you pay for hardware, APIs, and the search provider.