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AI search APIs are the infrastructure layer that gives large language models access to current web information. Unlike traditional search engines, these APIs return semantically relevant, structured results optimized for retrieval-augmented generation (RAG) and AI agent workflows. They're essential for any AI product that needs to answer questions about the real world beyond its training data.
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✓Structured Output
The enterprise heavyweight with ~$50M ARR, 1B+ monthly API calls, and a $1.5B valuation. Founded by Salesforce's former Chief Scientist, which explains the enterprise DNA.
Composable API design is genuinely useful – separate endpoints for web, news, RAG, and deep research. But pricing is opaque and clearly aimed at big contracts, not indie developers.
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