What is the cheapest Google model?

Gemma 3 4B, at $0.05 per million input tokens and $0.1 per million output tokens.

How much does Gemini 3.8 Flash cost?

$0.75 per million input tokens and $3.75 per million output tokens at list price.

How many Google models are available through the API?

28 are listed on OpenRouter right now, 26 of them paid.

Live · refreshed hourly

Google API pricing

Every Google model available through OpenRouter, at Google's list price per million tokens.

Newest

Gemini 3.8 Flash

$0.75 in · $3.75 out

Cheapest

Gemma 3 4B

$0.05 in · $0.1 out

Most expensive

Nano Banana Pro (Gemini 3 Pro Image)

$2 in · $12 out

All Google models and prices

Model	Input / 1M	Output / 1M	Blended 3:1	Context
Gemini 3.8 Flash	$0.75	$3.75	$1.50	1.0M
Gemini 3.7 Flash	$0.75	$3.75	$1.50	1.0M
Gemini 3.6 Flash	$0.75	$3.75	$1.50	1.0M
Gemini 3.5 Flash Lite	$0.3	$2.50	$0.85	1.0M
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)	$0.25	$1.50	$0.563	66K
Nano Banana 2 (Gemini 3.1 Flash Image)	$0.5	$3	$1.13	131K
Nano Banana Pro (Gemini 3 Pro Image)	$2	$12	$4.50	131K
Gemini 3.5 Flash	$1.50	$9	$3.38	1.0M
Gemini 3.1 Flash Lite	$0.25	$1.50	$0.563	1.0M
Gemma 4 26B A4B	$0.09	$0.3	$0.143	262K
Gemma 4 31B	$0.09	$0.34	$0.152	262K
Gemini 3.1 Flash Lite Preview	$0.25	$1.50	$0.563	1.0M
Nano Banana 2 (Gemini 3.1 Flash Image Preview)	$0.5	$3	$1.13	66K
Gemini 3.1 Pro Preview Custom Tools	$2	$12	$4.50	1.0M
Gemini 3.1 Pro Preview	$2	$12	$4.50	1.0M
Gemini 3 Flash Preview	$0.5	$3	$1.13	1.0M
Nano Banana Pro (Gemini 3 Pro Image Preview)	$2	$12	$4.50	66K
Nano Banana (Gemini 2.5 Flash Image)	$0.3	$2.50	$0.85	33K
Gemini 2.5 Flash Lite	$0.1	$0.4	$0.175	1.0M
Gemini 2.5 Flash	$0.3	$2.50	$0.85	1.0M
Gemini 2.5 Pro	$1.25	$10	$3.44	1.0M
Gemini 2.5 Pro Preview 06-05	$1.25	$10	$3.44	1.0M
Gemma 3 4B	$0.05	$0.1	$0.063	131K
Gemma 3 12B	$0.05	$0.15	$0.075	131K
Gemma 3 27B	$0.08	$0.45	$0.172	131K
Gemma 2 27B	$0.65	$0.65	$0.65	8K

Per million tokens, list price. Newest first.

Free Google models

Listed at no charge on OpenRouter, with rate limits.

Model	Input / 1M	Output / 1M	Blended 3:1	Context
Lyria 3 Pro Preview	$0	$0	$0	1.0M
Lyria 3 Clip Preview	$0	$0	$0	1.0M

Where to buy Google API credits for less

Google models cost the same per token wherever they're billed through OpenRouter. The credits don't. Live quotes for $100 of usage:

#	Where you buy	You payYou pay for $100.00 of usage	vs list price	Price source
1	OrbioCardCheapest right now Credits from a discount book, plus a 5% platform fee and card processing, both included in the quote.	$85.10 incl. $2.60 card processing	-14.9%	live quote
2	smaaartCard Credits from a discount book, plus a 5% platform fee on face value. Card processing and taxes shown at checkout.	$95.00 + card processing and tax at checkout (not in this number)	-5.0%	live quote
3	Direct from the labCard Prepaid credits at face value (OpenAI, Anthropic, Google…). Taxes may apply.	$100.00 no top-up fee	list price	face value
4	OpenRouterCrypto 5% on crypto purchases. No markup on model prices.	$105.00 fees included	+5.0%	published fee
5	OpenRouterCard 5.5% on card purchases, $0.80 minimum. No markup on model prices.	$105.50 fees included	+5.5%	published fee

Disclosure: this site is run by the team behind smaaart, one of the options compared. Tables are ranked by price only, from live quotes and published fees, including when smaaart isn't first. How we compare