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Gemini Developer API pricing
Summary
Google's Gemini API pricing page, last updated 2026-10-07, lists paid-tier prices for the current Gemini text models. The newest Pro model on the page is Gemini 3.1 Pro Preview. The only Flash-Lite model with a price listed is Gemini 2.5 Flash-Lite. All prices below are standard paid-tier rates per 1M tokens, as of 2026-10-07.
Key points
| Model | Input | Output | Cached input |
|---|---|---|---|
gemini-3.8-flash |
$0.75 ($1.50 from 2027) | $3.75 ($7.50) | $0.075 ($0.15) |
gemini-3.7-flash |
$0.75 ($1.50 from 2027) | $3.75 ($7.50) | $0.075 ($0.15) |
gemini-3.5-flash |
$1.50 | $9.00 | $0.15 |
gemini-3.1-pro-preview |
$2.00 (>200K: $4.00) | $12.00 (>200K: $18.00) | $0.20 (>200K: $0.40) |
gemini-2.5-pro |
$1.25 (>200K: $2.50) | $10.00 (>200K: $15.00) | $0.125 (>200K: $0.25) |
gemini-2.5-flash |
$0.30 (audio $1.00) | $2.50 | $0.03 (audio $0.10) |
gemini-2.5-flash-lite |
$0.10 (audio $0.30) | $0.40 | $0.01 (audio $0.03) |
- Pro models charge more when the prompt exceeds 200K tokens.
- Gemini 3.8 and 3.7 Flash have introductory prices that double on 2027-01-01.
- The page had no prices for Gemini 3.5 Flash-Lite or 3.6 Flash, both released on 2026-07-21.
Why it matters
This adds Google's Pro and Flash-Lite prices to the library's cost comparison. Gemini 3.1 Pro Preview ($2 / $12) costs about the same as GPT-6.1 Sol ($2 / $10) and Claude Sonnet 5.5 ($2 / $10). Gemini 3.8 Flash is cheaper than the older 3.5 Flash.