Who buys AI agent session data

Three kinds of buyer pay for agent session data, and they want different things.

#AI labs, through data vendors

Labs train agents to do multi-step work, and they need examples of that work: a person with a goal, an agent acting, errors and fixes. They mostly buy through vendors that recruit people and package the data.

Known prices in 2025 and 2026:

Labs also spend heavily on training environments. In September 2025 The Information reported that Anthropic's leaders had discussed spending more than $1 billion on them over a year.

The catch for individuals: most of this money pays for commissioned work, where the vendor sets the task and reviews the result. Passive history from your laptop is a newer and less proven product.

#Data vendors and brokers

Between labs and people sits a growing layer of vendors buying data in bulk: codebases, ticket histories, Slack archives from shut-down startups. In August 2026 The Information reported startups selling old Slack threads and tickets to AI buyers. Individual sessions are a small part of this market so far.

#Developer-tool companies

This buyer is newer and, for session data, possibly the best fit. Agents now pick, install and configure developer tools on a person's behalf. A database, analytics or deployment company sees the API calls its servers receive, and nothing of what came before:

• which docs page the agent read, and whether it understood it;
• which command it tried first, and the error it hit;
• why it chose this product over another, or gave up.

Sessions answer those questions, and the company can verify each one against its own server logs. groundedby's waitlist has a side for these companies.

#What this means for your history

• The proven market pays for specific, commissioned sessions.
• Buyers ask for long sessions of real work with tools. What makes a session valuable.
• Your history is most useful where it shows a product or domain a buyer cares about.