Gemini API Pricing

Google's current Gemini text models range from Gemini 3.1 Flash-Lite at $0.25 per 1M input tokens to Gemini 4 Argon at $2, which doubles on December 1, 2026. Gemini 3.8 Flash doubles on January 1, 2027. Batch Mode is half price.

Gemini models: price per 1M tokens

Model	Provider	Input	Cached input	Output	Batch in / out	1,000 typical requests
Gemini 4 Argon `gemini-4-argon`	Google	$2.00	$0.10	$10.00	$1.00 / $5.00	$8.00
Gemini 3.8 Flash `gemini-3.8-flash`	Google	$0.75	$0.075	$3.75	$0.375 / $1.88	$3.00
Gemini 3.1 Pro (preview) `gemini-3.1-pro-preview`	Google	$2.00	$0.20	$12.00	$1.00 / $6.00	$8.80
Gemini 3.5 Flash-Lite `gemini-3.5-flash-lite`	Google	$0.30	$0.03	$2.50	$0.15 / $1.25	$1.60
Gemini 3.1 Flash-Lite `gemini-3.1-flash-lite`	Google	$0.25	$0.025	$1.50	$0.125 / $0.75	$1.10

USD per 1M tokens, standard tier. A typical request here is 2,000 input and 400 output tokens, with no caching. Anthropic's "cached input" is its cache-read price; cache writes cost extra.

Upcoming price changes

Gemini 4 Argon: $2.00 / $10.00 now, $4.00 / $20.00 from December 1, 2026.
Gemini 3.8 Flash: $0.75 / $3.75 now, $1.50 / $7.50 from January 1, 2027.

Model pages

Gemini 4 Argon pricing: Gemini 4 Argon is the most expensive Gemini text model on Google's pricing page, and its price doubles on December 1, 2026.
Gemini 3.8 Flash pricing: Gemini 3.8 Flash is priced at $0.75 / $3.75 through December 31, 2026, and doubles to $1.50 / $7.50 on January 1, 2027.
Gemini 3.1 Pro (preview) pricing: Gemini 3.1 Pro is in preview, with prices that step up for prompts over 200,000 tokens.
Gemini 3.5 Flash-Lite pricing: Gemini 3.5 Flash-Lite is one of Google's low-cost models, with one input price across text, image, video and audio.
Gemini 3.1 Flash-Lite pricing: Gemini 3.1 Flash-Lite is the lowest-priced current Gemini text model in this comparison, at $0.25 / $1.50 for text, image and video.

Where the bill comes from

Most of a typical bill is output tokens and repeated input. Output costs about five times input or more on these models, and an uncached system prompt is paid for on every call. Cut output length, cache the prefix, and batch what can wait before you change models.

Guide: how to cut your Gemini API costs.

Frequently asked questions

What is the cheapest Google model?

By list price per typical request, Gemini 3.1 Flash-Lite: about $1.10 per 1,000 requests of 2,000 input and 400 output tokens.

Does Google offer a batch discount?

Yes. Batch prices on Google's Gemini API pricing page are half the standard prices.

Sources: Google's Gemini API pricing page. Checked October 30, 2026.

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