Google · prices checked 22 September 2026

Gemini API pricing: 4 models, per token and per task

Name: Gemini API pricing: list prices and cost per task
Creator: AIGROW
License: https://creativecommons.org/licenses/by/4.0/

The list price of every Google model on our list, read from Google’s own pricing page, next to what a passing answer cost on the AIGROW small-business benchmark and what three everyday jobs cost on each.

See the prices Every maker

US dollars per million tokens, at the standard rate. No reseller prices.

Best benchmark record, cheapest pass

$29.67per 1,000 passes on Gemini 3.1 Pro (preview), 19 of 20 tasks passed

Gemini 3.1 Pro (preview): $2 / $12
Gemini 3.8 Flash: $0.75 / $3.75
Gemini 3.5 Flash-Lite: $0.30 / $2.50
Gemini 3.1 Flash-Lite: $0.25 / $1.50

Input / output list price per million tokens.

Google prices the 4 models on our list from Gemini 3.1 Flash-Lite at $0.25 in and $1.50 out per million tokens to Gemini 3.1 Pro (preview) at $2 in and $12 out. On the AIGROW small-business benchmark Gemini 3.1 Pro (preview) had the best record, 19 of 20 tasks passed, at $29.67 per thousand passes.

Per token and per pass

The list price per million tokens, then how many of the benchmark’s 20 office tasks each model passed and what 1,000 passing answers cost, failed runs included.

The benchmark

Gemini API list prices and benchmark cost per pass
Model	Input	Output	Cached input	Context	Tasks passed	1,000 passes
Gemini 3.1 Pro (preview)Flagships	$2.00	$12.00	$0.20	1.05M	19 of 20	$29.67
Gemini 3.8 FlashWorkhorses	$0.75	$3.75	$0.075	1.05M	18 of 20	$7.17
Gemini 3.5 Flash-LiteSmall and fast	$0.30	$2.50	$0.03	1.05M	7 of 20	$2.47
Gemini 3.1 Flash-LiteSmall and fast	$0.25	$1.50	$0.025	1.05M	9 of 20	$1.41

Gemma 4 31B has open weights and no list price: Google sells no API for it.

What three everyday jobs cost

1,000 runs of each job at list price. The token counts are ours; the prices are Google’s.

What three everyday jobs cost on each Gemini model
Model	1,000 × support reply	1,000 × document summary	1,000 × agent task
Gemini 3.1 Pro (preview)	$10.80	$62.00	$70.00
Gemini 3.8 Flash	$3.75	$22.50	$24.00
Gemini 3.5 Flash-Lite	$1.90	$10.00	$12.60
Gemini 3.1 Flash-Lite	$1.35	$7.75	$8.75

Support reply: A 3,000-token prompt (the ticket, the thread so far and a policy excerpt) and a 400-token answer.
Document summary: A 40-page document of about 25,000 tokens in, a 1,000-token summary out.
Agent task: Ten steps that read 80,000 tokens between them, 70,000 of them context repeated from step to step and served from cache, and write 3,000.

The small print

What Google’s pricing pages add to the headline rates.

Gemini 3.1 Pro (preview): Preview model, but Google has no GA 3.x Pro and it is widely used. Prompts above 200K tokens: $4 / $18, cached $0.40. Cache storage $4.50 per MTok per hour. Batch 50% off. Max output 65,536.
Gemini 3.8 Flash: Launch price through 2026-12-31; from 2027-01-01 it becomes $1.50 / $7.50, cached $0.15. Batch and Flex 50% off; Priority $1.35 / $6.75. Cache storage $0.50 per MTok per hour (rising to $1.00).
Gemini 3.5 Flash-Lite: Same price for text, image, video and audio input. Batch 50% off. Cache storage $1.00 per MTok per hour.
Gemini 3.1 Flash-Lite: Audio input $0.50 (cached $0.05). Batch 50% off. Cache storage $1.00 per MTok per hour.

Head to head

The comparisons with a Gemini model on one side, each with both prices and the three jobs costed on each.

Other makers’ prices

Where the prices come from

Google: ai.google.dev/gemini-api/docs/pricing

Read on 22 September 2026. Each price is the standard rate for the shortest context band, with no batch or priority discount; long-context surcharges, batch rates and promotions are in each model’s small print. No price was taken from a reseller.

Pay a quarter of list price

AIGROW API credit is metered at the makers’ list prices, like the ones above, and $25 buys $100 of usage. The credit page lists the models it covers.

See API credit Compare every model

Prices checked 22 September 2026