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A detailed comparison of Exa vs You.com API: retrieval, research endpoints, result format, migration, and when to choose each API.
Exa and You.com both sell search infrastructure for AI applications, and they ship similar product lines. You.com offers Search, Contents and Research. Exa offers Search, Contents, Agent and Monitors. In both cases Search returns ranked results, Contents returns page text, and the third endpoint runs a multi-step research loop on your behalf. Exa adds Monitors, which re-runs a saved search on a schedule and reports what changed.
The difference is what sits underneath. Exa built and runs a retrieval index with people, companies, code and publications as first-class categories. You.com built a consumer AI search product first, and sells access to the same infrastructure.
This comparison is grounded in both vendors' published documentation. Where a number is ours, it says so.
Below, we compare what each vendor documents and charges: their API references, their pricing pages, their own product claims.
| What | Exa | You.com |
|---|---|---|
| Price per search | $0.007 | $0.005 |
| What that buys | 10 results with text and highlights included | Ranked results with LLM-ready snippets |
| Page content | Included in the search call | Contents API at $1.00 per 1,000 pages |
| Managed research call | Exa Agent, priced with search | Research API at $12.00 per 1,000 calls |
| Free allowance | $20 at signup plus $10/month | 100 queries a day plus $100 in credit |
As an additional note, Exa's published evaluation notes report that on the SimpleQA run You.com returned errors on 95 of 200 queries. That is a reliability observation rather than a quality benchmark, and it comes from a competitor.
Exa is the stronger choice when retrieval quality is the product and the agent needs categories a general index does not have.
Exa exposes people, companies and publications as categories on the search call, each backed by a dedicated index. A query like "Series B fintech companies in Singapore with 50-200 employees" returns structured records rather than pages about companies.
Sales enrichment, recruiting and competitive research all ask for sets of entities. Answering those from a page index means reading listicles and directories, then hoping they are current.
How You.com compares: You.com's Search API returns general web results, so entity queries are answered by whatever the index matches rather than by a category.
Exa crawls and indexes the web for machine retrieval, and publishes open benchmarks with the query sets and grading code so the claims can be re-run.
Publishing the query sets is the part that matters. It means a buyer can check the claim instead of taking it, and a competitor can contest it in public.
How You.com compares: You.com publishes an industry-leading accuracy claim for its APIs. We have not found an open benchmark backing it, and we have not run one.
Exa's Contents API returns highlights selected against the query, so a RAG pipeline pays for the passage rather than the page. Exa's documentation reports that 500 characters of highlights match the retrieval accuracy of the first 8,000 characters of page content.
In a pipeline making thousands of calls a day, that ratio is the difference between an LLM bill that scales with usage and one that scales with page length.
How You.com compares: You.com's Contents API returns page content; we have found no documented query-dependent highlighting equivalent.
You.com has a genuinely broad product line and areas where it fits better.
You.com offers Research and Finance Research endpoints that take a question and run the investigation, which suits teams that want the loop managed rather than orchestrated.
A dedicated finance research endpoint is a real differentiator for anyone building in that vertical, since the alternative is assembling the same behaviour from general primitives.
How Exa compares: Exa Agent does the equivalent job with explicit effort levels from low to xhigh, which is more control and more to configure.
A unified semantic index powering Exa's API products.
Exa Search provides the highest accuracy of any search API within its latency class. It processes natural language queries to deliver results optimized for token efficiency, complete with citations.
Users can select from six search types spanning budgets from ~250ms to tens of seconds. This includes instant and fast for speed-sensitive loops, auto for adaptive scaling, and a range of deep research modes: deep-lite, deep, and deep-reasoning.
The Exa Agent is a high-compute research primitive designed to synthesize information from the entire web. It automates multi-hop reasoning for complex workflows like exhaustive list-building and entity enrichment.
Compute is governed by effort levels of low, medium, high and xhigh, alongside an auto mode that scales resources to meet the task requirements.
The Contents API retrieves full-page text, summaries, and structured data according to a user-defined schema. It automatically resolves complex layouts, including PDFs and pages requiring JavaScript rendering.
Query-dependent highlights reduce token consumption significantly; just 500 characters of highlights provide the same retrieval accuracy as the initial 8,000 characters of page content, all with sub-100ms latency.
The context endpoint, also called Exa Code, is tuned for coding agents and developer workflows. It searches repositories, documentation pages, Stack Overflow and related technical sources, and returns the result already formatted as usable code context.
A tokensNum parameter sets the token budget for each call. It takes a fixed number, or dynamic to let the endpoint size the response to the query.
The Monitors API runs saved searches on a schedule and surfaces what changed since the last run.
| If you need | Choose | Why |
|---|---|---|
| People, company or publication search | Exa | First-class categories with dedicated indexes |
| Query-dependent highlights in a RAG loop | Exa | Highlights selected against the query |
| Open, re-runnable benchmarks | Exa | Query sets and grading code published |
| A managed research endpoint | Either | You.com Research, or Exa Agent with explicit effort levels |
| A consumer-facing brand behind the API | You.com | Public AI search product alongside the APIs |
The product lines overlap more than most pairs here. The decision usually turns on whether you need entity categories and published benchmarks, or a managed research endpoint from a vendor with a consumer product.
The two APIs are similarly shaped, so the mapping is mostly parameter names. Exa has native integrations with LiteLLM, Vercel AI SDK, LangChain, and many other providers.
You.com's query maps directly onto Exa's query, and result-count parameters map onto num_results, with Exa's ceiling at 100.
You.com's Contents API maps onto Exa's Contents API. Where you were consuming full page text to locate a passage, request contents.highlights with a query instead.
You.com's Research endpoint maps onto Exa Agent. Exa expects an explicit effort level of low, medium, high or xhigh, or auto to let it scale.
Exa adds category, which has no You.com equivalent, so entity queries can become a category rather than a phrasing trick.