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Where gemini-3.1-pro is free

One row on the list serves gemini-3.1-pro free: Gemini Enterprise Agent Platform express mode (formerly Vertex AI). It asks for no card. The provider’s last scheduled probe was on 2026-10-26; its offer is rechecked twice a week. It measures notable: in the upper half of the Artificial Analysis Intelligence Index, below its strong bar.

Every free model · the whole list

Who serves it free

Gemini Enterprise Agent Platform express mode (formerly Vertex AI)

🎁 Trials (no card when possible) · no card · last probe 2026-10-26 · listed since 2026-09-23

Google Cloud’s express mode: an API key and 90 days of Gemini models within the free tier’s quotas, with no billing information, for a new Google Cloud user on a @gmail.com account

Provider-wide limits

Stable Gemini models: 10 requests/minute per project per model (Free express trial lasts up to 90 days); for gemini-2.5-pro, gemini-2.5-flash

Preview Gemini models: Per-minute requests allowance: amount varies per project per model (Free express trial lasts up to 90 days); for gemini-3.1-pro-preview, gemini-3-flash-preview

The free express trial is for new Google Cloud users and requires no billing information. Stable and Preview model rate policies differ; enabling billing is necessary after the trial. Existing Google Cloud accounts do not get this offer. The separate $300 Cloud Free Trial needs a payment method. Express is Preview and may not process personal data.

Rows that listed it before


Generated from registry.yaml on 2026-10-27 and re-verified twice a week; every free model on the list is at https://mvalentsev.github.io/awesome-free-ai-coding/models/, and the full list, the Atom feed and the machinery at https://github.com/mvalentsev/awesome-free-ai-coding.