{"slug":"perplexity","name":"Perplexity","domain":"perplexity.ai","verdict":"As of 2026-07-13, ChatGPT, Claude, Gemini, Grok collectively rank Perplexity #5 of 8 for web search api for ai agents (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/perplexity (modelsagree.com, CC BY 4.0).","best_rank":5,"categories":2,"brief":{"category":"best-web-search-api-for-ai-agents","title":"Best web search API for AI agents","rank":5,"of":8,"top":"Exa","day":"2026-07-22","why":[{"t":"grounded citation-backed answers","m":["ChatGPT","Claude","Grok"],"q":"grounded, citation-backed answers"},{"t":"real-time indexing","m":["Claude","Grok"],"q":"real-time indexing optimized for low hallucination in agents"},{"t":"agentic search support","m":["ChatGPT","Grok"],"q":"multi-step agentic support via Agent API"},{"t":"offloads search-read-synthesize loop","m":["Claude","Grok"],"q":"offloading the search-read-synthesize loop entirely"}],"gap":[{"t":"full-page text and highlights","m":["ChatGPT","Grok","Claude"],"q":"returns full page contents and highlights natively"},{"t":"semantic meaning and intent","m":["ChatGPT","Grok","Claude","Gemini"],"q":"search based on semantic meaning and intent rather than keywords"},{"t":"category and similarity search","m":["Claude"],"q":"category/similarity search is uniquely suited to agent research tasks beyond keyword lookup"}],"fix":[{"t":"expose more raw retrieval control","m":["ChatGPT","Claude","Grok"],"q":"Expose more raw retrieval control"},{"t":"return raw structured data","m":["Claude","Grok"],"q":"raw structured data for custom agent processing"},{"t":"lower deep-research latency and cost","m":["Grok"],"q":"Higher latency on deep research"}]},"entries":[{"slug":"best-web-search-api-for-ai-agents","title":"Best web search API for AI agents","rank":5,"of":8,"score":6,"appearances":3,"modelRanks":{"ChatGPT":4,"Claude":4,"Grok":4},"reason":"Strong global retrieval, advanced filtering, straightforward request-only pricing, and an easy upgrade path to cited answers and agentic search make it a near-tie with Tavily for research-heavy apps","reasons":[{"model":"ChatGPT","reason":"Strong global retrieval, advanced filtering, straightforward request-only pricing, and an easy upgrade path to cited answers and agentic search make it a near-tie with Tavily for research-heavy apps"},{"model":"Claude","reason":"Delivers grounded, citation-backed answers over a real-time index in one call, offloading the search-read-synthesize loop entirely, with strong factuality benchmarks and predictable pricing"},{"model":"Grok","reason":"Delivers grounded answers with citations and real-time indexing optimized for low hallucination in agents, fast for factual queries, multi-step agentic support via Agent API; excels where synthesized responses reduce LLM context load."}],"fixes":[{"model":"ChatGPT","fix":"Offers less granular control over crawling and returned page content than Exa or a dedicated search-plus-extraction stack"},{"model":"Claude","fix":"Expose more raw retrieval control (ranked documents, scores, per-source content) so builders aren't locked into the synthesized-answer abstraction"},{"model":"Grok","fix":"Higher latency on deep research, conversational/answer-focused rather than raw structured data for custom agent processing; not the cheapest at scale."}],"updated":"2026-07-13","rank_history":{"days":["2026-07-12","2026-07-13"],"ranks":[4,4]},"api":"https://modelsagree.com/api/v1/best/best-web-search-api-for-ai-agents.json"},{"slug":"best-ai-research-tool","title":"Best AI tool for research","rank":5,"of":7,"score":5,"appearances":2,"modelRanks":{"ChatGPT":3,"Gemini":4},"reason":"Best balance of speed, breadth, citations, and usability for everyday web research; Research mode rapidly explores many sources while ordinary search makes follow-up investigation exceptionally fluid","reasons":[{"model":"ChatGPT","reason":"Best balance of speed, breadth, citations, and usability for everyday web research; Research mode rapidly explores many sources while ordinary search makes follow-up investigation exceptionally fluid"},{"model":"Gemini","reason":"Unmatched for rapid web discovery and broad topic research, combining real-time web search with synthesized answers and targeted academic search modes."}],"fixes":[{"model":"ChatGPT","fix":"Source selection and synthesis can be shallow or overconfident, making it better for orientation than final verification"},{"model":"Gemini","fix":"Prioritizes broad web summaries over deep, granular data extraction across long-form academic methodology sections."}],"updated":"2026-07-21","api":"https://modelsagree.com/api/v1/best/best-ai-research-tool.json"}],"page":"https://modelsagree.com/product/perplexity","check":"https://modelsagree.com/check?q=Perplexity","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}