Tools · Comparison

OpenSEO vs Perplexity AI vs Perplexity Labs

All three are research tools. Here is what separates them.

	OpenSEO	Perplexity AI	Perplexity Labs
What it is	OpenSEO is the open source alternative to Ahrefs and Semrush. Keyword research, backlinks, rank tracking, and site audits, billed by usage instead of a $100-plus monthly subscription. Self-host it free, or connect it to your AI agents over MCP.	AI-powered search engine providing accurate, sourced answers using LLMs and real-time web search.	Runs a longer research task and returns a report, a spreadsheet or a small app rather than an answer.
Category	Research	Research	Research
Pricing	Freemium	Freemium · $20/mo	Paid · Included with Perplexity Pro $20/mo
How it bills	Not published	Flat monthly	Bundled
Free tier	Yes	Yes	No
Rating	Not yet rated	4.6 from 5,400 reviews	Not yet rated
Features	—	Real-time web search Cited sources Pro Search deep research File analysis Image search Code execution Collections API access	Multi-minute research runs Report, spreadsheet and app outputs Charts generated from findings Citations throughout Shareable results
What works	—	Accurate with citations Real-time information Excellent for research Clean interface Generous free tier	Produces a usable artefact, not just text Well cited Good at breadth-first research
What does not	—	Pro features behind paywall Sometimes shallow answers Limited creative tasks Fewer integrations	Requires a Pro subscription Slow by design Depth varies by topic