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Google Gemini API pricing · Updated

Gemini API pricing

Quick answer

Gemini API prices range from $0.10 per million input tokens on Gemini 2.5 Flash-Lite to $2.00 on Gemini 4 Argon. Per million input and output tokens, Gemini 3.5 Flash-Lite costs $0.30 and $2.50, Gemini 3.8 Flash $0.75 and $3.75, Gemini 3.1 Pro $2.00 and $12.00, and Gemini 4 Argon $2.00 and $10.00. Argon doubles on December 1, 2026 and 3.8 Flash on January 1, 2027.

Estimate your monthly Gemini API cost

Estimated monthly cost$413$0.0041 per request on Gemini 3.8 Flash. Excludes cache writes, tools and taxes.

Gemini API prices per million tokens

ModelInputCache readOutputBatch in / outStatus
Gemini 4 Argon and ProAll Gemini 4 Argon and Pro prices →
Gemini 4 Argongemini-4-argonPaid tier onlyFrom Dec 1, 2026: $4.00 in / $20.00 out$2.00$0.10$10.00$1.00 / $5.00Active
Gemini 3.1 Pro Previewgemini-3.1-pro-previewPreviewPrompts over 200,000 tokens: $4.00 in / $18.00 out$2.00$0.20$12.00$1.00 / $6.00Active
Gemini 2.5 Progemini-2.5-proPrompts over 200,000 tokens: $2.50 in / $15.00 out$1.25$0.125$10.00$0.625 / $5.00Active
Gemini FlashAll Gemini Flash prices →
Gemini 3.8 Flashgemini-3.8-flashFrom Jan 1, 2027: $1.50 in / $7.50 out$0.75$0.075$3.75$0.375 / $1.875Active
Gemini Flash Latestgemini-flash-latestAlias that follows the newest Flash, now Gemini 3.8 FlashFrom Jan 1, 2027: $1.50 in / $7.50 out$0.75$0.075$3.75$0.375 / $1.875Active
Gemini 3.6 Flashgemini-3.6-flashFrom Jan 1, 2027: $1.50 in / $7.50 out$0.75$0.075$3.75$0.375 / $1.875Active
Gemini 3 Flash Previewgemini-3-flash-previewPreview$0.50$0.05$3.00$0.25 / $1.50Active
Gemini 2.5 Flashgemini-2.5-flash$0.30$0.03$2.50$0.15 / $1.25Active
Gemini Flash-LiteAll Gemini Flash-Lite prices →
Gemini 3.5 Flash-Litegemini-3.5-flash-lite$0.30$0.03$2.50$0.15 / $1.25Active
Gemini 3.1 Flash-Litegemini-3.1-flash-lite$0.25$0.025$1.50$0.125 / $0.75Deprecated, shuts down as early as May 7, 2027
Gemini 2.5 Flash-Litegemini-2.5-flash-lite$0.10$0.01$0.40$0.05 / $0.20Active

Prices from Google Gemini’s pricing page and deprecation schedule, for Google Gemini’s own API. Live, text-to-speech, image, embedding and music models are priced differently and are not listed here. Upcoming changes across providers are on the price change and shutdown tracker.

What one request costs on each Gemini API model

Worked out from the prices above for Gemini 4 Argon, Gemini 3.1 Pro Preview, Gemini 3.8 Flash and Gemini 3.5 Flash-Lite, at standard rates with no Batch discount.

RequestGemini 4 ArgonGemini 3.1 Pro PreviewGemini 3.8 FlashGemini 3.5 Flash-Lite
Chat reply3,000 input tokens, 500 output$0.011$0.012$0.0041$0.0022
Document summary30,000 input tokens, 1,500 output$0.075$0.078$0.028$0.013
Agent task80,000 input tokens (60,000 cached), 6,000 output$0.106$0.124$0.042$0.023

Head-to-head price comparisons: Claude Sonnet 5.5 vs Gemini 4 Argon · Claude Opus 5.5 vs Gemini 4 Argon · GPT-6.1 Sol vs Gemini 4 Argon · GPT-6 Astra vs Gemini 4 Argon · Gemini 3.8 Flash vs GPT-6.1 Terra · Gemini 3.8 Flash vs Claude Haiku 5.5 · Gemini 3.8 Flash vs GPT-6 Luna · Gemini 3.5 Flash-Lite vs Claude Haiku 5.5 · Gemini 3.5 Flash-Lite vs GPT-6 Luna · Gemini 4 Argon vs Gemini 3.8 Flash · Gemini 3.8 Flash vs Gemini 3.5 Flash-Lite · Gemini 4 Argon vs Gemini 3.1 Pro Preview · all comparisons.

Gemini API discounts and extra charges

Price increases
Gemini 4 Argon doubles on December 1, 2026, and Gemini 3.8 Flash and 3.6 Flash double on January 1, 2027. Calls keep the price of the day they ran.
Batch and Flex
50% off input and output. Gemini 4 Argon, 3.8 Flash, 3.6 Flash and 3.1 Flash-Lite also halve cache reads; the 2.5 models, 3 Flash Preview and 3.1 Pro bill cache reads at the Standard rate.
Priority
1.8× the input and output price for higher-priority processing.
Long context
Gemini 3.1 Pro and 2.5 Pro bill the whole request at higher rates once a prompt passes 200,000 tokens. Gemini 4 Argon and the Flash models have one rate at any length.
Context caching
Cache reads cost 5% to 10% of the input price. Stored cache is billed per million tokens per hour: from $0.50 on 3.8 Flash to $4.50 on the Pro models.
Audio input
Some models charge more for audio than for text, image or video input, for example $1.00 per million audio tokens on Gemini 2.5 Flash.
Grounding with Google Search
Gemini 3 and later: 5,000 free searches a month shared across models, then $14 per 1,000. Gemini 2.5: 1,500 free grounded prompts a day, then $35 per 1,000.
Grounding with Google Maps
Gemini 3 and later: 5,000 free requests a month, then $14 per 1,000. Gemini 2.5: 1,500 free a day (10,000 on 2.5 Pro), then $25 per 1,000.
Free tools
Code execution, URL context and file search storage carry no extra charge; their tokens are billed at the model's rates.
Free tier
Google offers a free tier on some models. Gemini 4 Argon is paid-tier only, and every price on this page is a paid-tier price.

Your Google Gemini bill shows the total. Ganivra shows it per customer.

Ganivra prices every Google Gemini call at these rates and adds it up by customer, feature and workflow, next to what each customer pays. You see who is profitable and who isn’t.

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Gemini API pricing questions

How much does the Gemini API cost?

It depends on the model. Per million tokens, Gemini 2.5 Flash-Lite costs $0.10 input and $0.40 output, 3.5 Flash-Lite $0.30 input and $2.50 output, 3.8 Flash $0.75 input and $3.75 output, 3.1 Pro $2.00 input and $12.00 output and Gemini 4 Argon $2.00 input and $10.00 output. A chat reply of 3,000 input and 500 output tokens costs $0.0041 on 3.8 Flash.

What is the cheapest Gemini model?

Gemini 2.5 Flash-Lite, at $0.10 input and $0.40 output per million tokens, or half that with the Batch API. Among Gemini 3 models, Gemini 3.1 Flash-Lite and 3.5 Flash-Lite are the cheapest.

Are Gemini API prices going up?

Yes, for three models. Gemini 4 Argon goes from $2.00 input and $10.00 output to $4.00 input and $20.00 output per million tokens on December 1, 2026. Gemini 3.8 Flash and 3.6 Flash go from $0.75 input and $3.75 output to $1.50 input and $7.50 output on January 1, 2027, and the gemini-flash-latest alias follows them.

What is the difference between Standard, Batch, Flex and Priority?

They are service tiers for the same model. Standard is the list price. Batch and Flex cost 50% less on input and output in exchange for asynchronous or lower-priority processing. Priority costs 1.8× for higher-priority processing.

Does the Gemini API charge more for long prompts?

On Gemini 3.1 Pro and 2.5 Pro, yes: once a prompt passes 200,000 tokens, the whole request costs more, $4.00 input and $18.00 output per million on 3.1 Pro. Gemini 4 Argon and the Flash models have one rate at any length.

How much does grounding with Google Search cost?

Gemini 3 and later models share 5,000 free searches a month, then pay $14 per 1,000. Gemini 2.5 models get 1,500 free grounded prompts a day, then $35 per 1,000. Only requests that return web grounding are charged.

What does gemini-flash-latest cost?

gemini-flash-latest is an alias that follows Google's newest Flash model, now Gemini 3.8 Flash, so it costs $0.75 input and $3.75 output per million tokens until January 1, 2027. When the alias moves to a new model, its price moves with it; Ganivra records which model each call was priced as.

How do Gemini prices compare with OpenAI and Claude?

Gemini 4 Argon costs the same per token as GPT-6.1 Sol ($2.00 input and $10.00 output) and Claude Sonnet 5.5 ($2.00 input and $10.00 output) until December 1, then twice as much. Gemini 3.8 Flash costs less than GPT-6.1 Terra ($1.00 input and $5.00 output) even after its January increase.

Which Gemini models are being retired?

Google has deprecated Gemini 3.1 Flash-Lite and may shut it down as early as May 7, 2027, with Gemini 3.5 Flash-Lite as its replacement. Gemini 2.0 Flash and 2.0 Flash-Lite shut down on June 1, 2026.

How do I track Gemini API cost per customer?

Tag each Gemini call with the customer it served, then price it at the rate in effect that day and add it up by customer. Ganivra does this automatically, including Batch, Flex and Priority calls and scheduled price changes, and shows each customer's Gemini cost next to what they pay you.

More detail: Gemini Flash pricing · Gemini 4 Argon and Pro pricing · the Gemini price increase explained · OpenAI API pricing · Claude API pricing.