The Gemini API free tier charges nothing for tokens on many models, but it differs from paid in more than price. As of 19 October 2026, Google's pricing page says free tier content is used to improve its products, some models are not available free, and limits are lower and tied to a project.
What the pricing page says
Google's Gemini API pricing page, read on 19 October 2026, states:
- Input and output tokens are free for a list of models on the free tier, including several Flash and Flash-Lite versions and Gemini 2.5 Pro.
- Two models, Gemini 4 Argon and Gemini 3.1 Pro Preview, are not available on the free tier.
- Free tier access includes Google AI Studio and limited access to certain models.
- Free tier content is used to improve Google's products. For most models, paid tier content is not.
- Search grounding includes 5,000 free requests a month, shared across Gemini 3 and newer, then $14 per 1,000 requests.
The data use line matters most for teams. Do not send customer data, source code you do not own, or anything under confidentiality terms to a free tier endpoint.
How limits work
The rate limit page says limits are applied per project, not per API key, and that exceeding any of requests per minute, input tokens per minute or requests per day triggers an error. Daily request quotas reset at midnight Pacific time. Experimental and preview models are more restricted.
Paid access has tiers. As listed on the page, Tier 1 needs an active linked billing account, Tier 2 needs $100 paid plus 3 days since the first payment, and Tier 3 needs $1,000 paid plus 30 days. Upgrades are automatic, and free to Tier 1 usually takes effect instantly. Each tier also carries a spend limit per 10 minute window of $10, $50 and $200.
Free tier is a prototyping tool
Good fits:
- Learning the API and trying prompts.
- Small personal projects with public or synthetic data.
- Evaluating whether a model can do your task before you pay.
Poor fits:
- Production traffic that must not be throttled.
- Anything with personal data, customer data or confidential code.
- Work that needs the newest models, if they are paid only.
Moving to paid without surprises
- Link billing, then check your tier and limits in the console.
- Set budget alerts and a spend cap on the project.
- Re-test with a paid tier model, since quality and latency can differ from the free model.
- Review scheduled price changes. See scheduled price changes in AI APIs.
Quick check
Is the free tier safe for company data?
Google's page says free tier content is used to improve its products. Treat it as unsuitable for confidential data and read the current terms.
Do free and paid use the same limits?
No. Limits depend on tier and model, and are set per project. Check the console for yours.
Sources
Last reviewed: 19 October 2026.
