The answer engine. When you need a sourced answer, not a chat, this is the one.
Perplexity is the tool you reach for when an answer with footnotes matters more than a beautifully drafted paragraph. For UK SME operators it earns its seat alongside ChatGPT and Claude precisely because it does not pretend to be a writing tool; it is a search tool with reasoning bolted on. The Comet browser is genuinely interesting (agentic browsing actually works for shopping, form-filling and inbox triage), but the legal noise around it, including the Amazon injunction in early 2026, means treat agentic commerce as experimental, not production.
When the question is factual, time-sensitive, or needs to be footnoted. UK market sizing, supplier verification, competitor scans, regulatory checks, due diligence pre-reads, sourcing statistics for a proposal. Anywhere a stakeholder might ask "where did you get that number" and you need to point at a link rather than wave at the AI.
When the deliverable is the prose itself. Claude is a far better drafter; ChatGPT is a far better generalist for image and document handling; both produce more polished long-form output. Perplexity is not the tool for writing a proposal, a contract, a board paper, or any code; it is the tool for sourcing the facts that go into them.
Real-time, citation-backed research. Every claim links to a source you can click. Faster and more trustworthy than ChatGPT or Claude for fact retrieval, market sizing, regulatory checks, and competitor scans.
Perplexity has fewer modes than the others. Pick by depth of the research need.
| If you need… | Reach for |
|---|---|
| Quick fact-grounded answer with sources | Perplexity Pro (chat) |
| Multi-document research with persistent context | Spaces |
| 30-60 minute deep research report | Deep Research mode |
| Browsing the web with an AI co-pilot | Comet (Perplexity's browser) |
Perplexity excels at fact-grounded retrieval with citations; reach for it when the input is a research question and the output needs sources you can verify.
Each sub-product has its own focused page. Tap any card to open the full breakdown.
Reach for this when you need a citation, not a vibe. Pair with Claude for the writing.
View details →Only justifiable if Deep Research is a daily tool. Otherwise stick with Pro.
View details →The best fast research tool on the market. Faster and more sourced than ChatGPT Deep Research.
View details →Use when a research thread needs to live longer than one session and stay sourced.
View details →Genuinely useful as a second browser for research-heavy sessions. Do not put it on the critical path for anything regulated.
View details →Reach for this when your product cannot afford to hallucinate and the answer must be sourced.
View details →Useful connectors worth knowing for this tool. Ranked by everyday usefulness.
Lets Claude Desktop or Claude Code call Perplexity Sonar for grounded web search inside a Claude conversation. The cleanest way to combine Claude's writing with Perplexity's sourcing.
Comet inherits the Chromium extension ecosystem; password managers (1Password, Bitwarden) and ad blockers all work. Worth knowing if you are evaluating Comet as a daily browser.
For n8n, Zapier, Make and custom workflows that need a grounded-search step. Cheaper than running Claude or GPT and asking them to search.