Gemini API logs and datasets: storage on by default for new projects

Summary

From 2026-10-26, new paid-tier Gemini API projects store Generate Content API requests by default (store=true), as the Interactions API already did. This covers generateContent, streamGenerateContent, and batchGenerateContent. Existing projects keep their current setting, which is off unless logging was turned on in AI Studio. The Gemini API changelog announced the change on 2026-10-26.

Key points

• What is stored: the prompt, the response, and context from earlier turns. You can see the logs on the AI Studio Logs page for the project.
• Retention: logs are deleted after 55 days by default. You can choose 7, 14, 28, or 55 days. Logs saved to a dataset do not expire.
• Opt out: pass store=false on a request, which overrides the project setting. Or turn off Generate Content API logging in the Settings panel of the Logs and Datasets dashboard. Generate Content and Interactions logging are set separately.
• Caveat: if you turn off Interactions logging, the API can no longer store and fetch conversation history for you, unless you turn it back on per request.
• Scope: only the paid tier. The page does not mention any charge for logging. Sharing datasets with Google is optional. See the "Data logging and sharing" policy.

Why it matters

If you create a new Gemini project for sensitive data, your prompts and responses are now kept for 55 days unless you opt out. Check this when setting up new projects.