Gemini API

Free Tier · API credits

What you get: Free tier: "Limited access to certain models"; "Free input & output tokens"; "Google AI Studio access"

Limits / the catch: "Content used to improve our products"; e.g. gemini-4-argon "Not available on the Free tier"; gemini-3.8-flash Free Tier input/output "Free of charge"

Notes: Re-verified on ai.google.dev (page "Last updated 2026-10-15 UTC"). "Google AI Studio usage is free of charge in all available regions."