The short answer
Google Imagen / Gemini Image is billed per image / per token ($0.02-0.15). It has a free tier: Free AI Studio key + limited free tier. Paid usage is quoted by the vendor rather than listed as a public price.
Plans and prices
| Plan | Price | What it covers |
|---|---|---|
| Gemini 2.5 Flash Image (Standard) | $0.039 / image | 1024px image = 1290 output tokens at $30/1M output tokens; $0.30/1M input tokens |
| Gemini 2.5 Flash Image (Batch/Flex) | $0.0195 / image | 50% discount via batch (24h) or flex tier; $0.15/1M input tokens |
| Imagen 4 Fast | $0.02 / image | Cheapest Imagen tier; deprecated, shutdown Aug 17 2026 |
| Imagen 4 Standard | $0.04 / image | Standard photorealism tier; deprecated Aug 2026 |
| Imagen 4 Ultra | $0.06 / image | Highest-quality Imagen tier; deprecated Aug 2026 |
| Gemini 3 Pro Image | $0.067-$0.12 / image | $120/1M output tokens; ~$0.067 at 1K/2K, $0.12 at 4K (batch/flex) |
How Google Imagen / Gemini Image bills you
The pricing model is per image / per token ($0.02-0.15). Imagen 4 and Gemini native image generation served via AI Studio (quick) and Vertex AI (enterprise), with hyperscale reliability and batch discounts. Best suited to: hyperscale image gen across ai studio + vertex ai.
The pricing page we read

Source: https://ai.google.dev/gemini-api/docs/pricing. Prices change, so confirm there before you commit.
Compare Google Imagen / Gemini Image with alternatives
- OpenAI Images (gpt-image) vs Google Imagen / Gemini Image pricing
- Google Imagen / Gemini Image vs fal.ai pricing
- Google Imagen / Gemini Image vs Replicate pricing
Other image generation apis: OpenAI Images (gpt-image), fal.ai, Replicate, Stability AI, Black Forest Labs (FLUX).
Looking at quality rather than price? See the Google Imagen / Gemini Image score on APIbenchmarks. Full entry: Google Imagen / Gemini Image pricing.