Exa

Exa gives AI applications a way to search the web. It is a web search API and AI web researcher, so developers can feed live results into their own products instead of relying on a model's training data.

The search API has Auto, Neural and Keyword modes.

Auto and Neural cost $5 to $25 per 1,000 requests, while Keyword is $2.50.

Separate content calls return page text, highlights or summaries at $1 per 1,000 pages, and an Answer endpoint costs $5 per 1,000 answers.

Exa is freemium.

The pay as you go plan is geared toward individuals and small teams and starts with $10 in free credits, which is enough to test the modes before committing.

Because billing is per request, costs follow usage closely, though neural search at the top of the range adds up fast at volume.

A custom tier covers high volume, custom datasets, enterprise security and support, with pricing set by contacting the company.

The category list also points to research, recruiting and sales uses.