Google Gemini API
The Gemini API gives developers programmatic access to Google's Gemini models, with a free tier and per-token paid pricing.
Free tierUsage-basedVerified
Our verdict
The cheapest way to start: a free tier on Flash models for prototyping, then low per-token prices on Flash-Lite. Check the dates on promotional prices before you build your budget around them.
Best for
- ✓ Prototyping on a free tier
- ✓ High-volume, low-cost text tasks
Watch out for
- ! Some promotional prices double on a set date
- ! No free tier on Gemini 4 Argon or Gemini 3.1 Pro Preview
Pricing
Read from the official pricing page. Prices in USD; always confirm on the vendor's site.
| Plan | Price | Details |
|---|---|---|
| Free tier | Free | Input and output listed as free of charge on Flash and Flash-Lite models. Limits: check site |
| gemini-2.5-flash-lite | Pay as you go | $0.10 per 1M input tokens (text, image, video), $0.40 per 1M output tokens |
| gemini-3.1-flash-lite | Pay as you go | $0.25 per 1M input tokens (text, image, video), $1.50 per 1M output tokens |
| gemini-3.8-flash | Pay as you go | $0.75 per 1M input, $3.75 per 1M output through December 31, 2026; $1.50 / $7.50 from January 1, 2027 |
| gemini-4-argon | Pay as you go | $2.00 per 1M input, $10.00 per 1M output through November 30, 2026; $4.00 / $20.00 from December 1, 2026. No free tier |
Note: Standard-tier prices from the page last updated 2026-10-19. Batch and Flex are listed at half the Standard price for these models.
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