Exa
Exa is an AI search tool based on semantic search, using vector embedding technology to understand natural-language intent and return results that are semantically relevant even when they do not contain exact keyword matches. It is designed to serve AI applications that require meaning-based information retrieval rather than traditional keyword-based indexing.
Core Facts
Timeline (last 90 days)
Exa announced that its annualized revenue has surpassed $100 million; it provides search services for AI Agents and handles 2 billion requests per month.
Configuring Exa search takes only one command, and the Agent will automatically ask for the key and restart the gateway.
Exa Lite and the new Exa Auto tier are already available via the API.
Exa 3.0 launches the Exa Auto pricing tier at $7 per 1,000 requests.
Exa runs its own crawler and independent index covering more than 2 trillion URLs, but does not offer a self-hosted option.
In eight benchmarks run by Exa itself, Exa 3.0 led Perplexity, Brave and Parallel, with the largest gap on BrowseComp at 91.8%.
Exa's Dynamic Highlights feature selects tokens from search results, using 95% fewer tokens than full-page text while improving answer quality.
Exa 3.0 scaled up the embedding model.
Exa released version 3.0 of its search API.
Exa introduced the Exa Lite tier, priced at $4 per 1,000 requests.
16 more timeline events
All Facts (20)
Exa's core capability is semantic search, based on vector embedding technology rather than keyword matching.
65%UnverifiedExa搜索工具采用类似RAG的技术，预先将网站内容抓取并存储在向量数据库中，查询时使用模糊语义匹配
85%UnverifiedExa采用类似RAG的技术架构，预先将网站内容抓取并存储在向量数据库中，通过语义模糊匹配来检索信息
85%UnverifiedExa持续爬取并索引数十亿网页，将内容预先向量化存储
70%UnverifiedExa语义搜索引擎的索引层针对结构化知识内容（论文、技术文档、代码库）做了专项优化
70%Partially VerifiedExa introduced the Exa Lite tier, priced at $4 per 1,000 requests.
65%UnverifiedExa有四大功能模块：Exa Search、URL Content、Similar Link和Exa Answer
60%UnverifiedExa announced that its annualized revenue has surpassed $100 million; it provides search services for AI Agents and handles 2 billion requests per month.
50%UnverifiedConfiguring Exa search takes only one command, and the Agent will automatically ask for the key and restart the gateway.
50%UnverifiedExa Lite and the new Exa Auto tier are already available via the API.
50%UnverifiedExa's Dynamic Highlights feature selects tokens from search results, using 95% fewer tokens than full-page text while improving answer quality.
50%UnverifiedIn eight benchmarks run by Exa itself, Exa 3.0 led Perplexity, Brave and Parallel, with the largest gap on BrowseComp at 91.8%.
50%UnverifiedExa runs its own crawler and independent index covering more than 2 trillion URLs, but does not offer a self-hosted option.
50%UnverifiedExa 3.0 scaled up the embedding model.
50%UnverifiedExa 3.0 adds Dynamic Highlights, which can dynamically generate highlighted snippets in returned results.
50%UnverifiedExa officially claims that version 3.0 leads Perplexity, Brave and Parallel on 8 benchmarks.
50%UnverifiedThese 8 benchmarks were designed and executed by Exa itself, so they are vendor self-test data rather than independent third-party evaluation.
50%UnverifiedExa has not publicly disclosed the specific composition, data sources and scoring methods of these 8 benchmarks, nor are there third-party reproduction results.
50%UnverifiedIn the comparison data, Tavily Search and SerpApi tie for first place (97.6%), Parallel Advanced is 97.0%, Perplexity Search is 95.0%, and Exa Auto is 91.0%.
50%UnverifiedThe competitor price references given in the HN comment section are: Exa at about $4 per thousand, Brave at $5 per thousand, and Kagi at $12 per thousand.
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