Gemini 3.8 Flash

Q: What is the API model name for Gemini 3.8 Flash?

Use gemini-3.8-flash in API calls to Google. The context window is 1.05M tokens, and a response can run to 65,536 output tokens.

Gemini 3.8 Flash API pricing is $0.75 per million input tokens and $3.75 per million output tokens.

Provider: Google
API model name: gemini-3.8-flash
Status: Current
Input, $ per 1M tokens: $0.75
Cached input, $ per 1M tokens: $0.075
Output, $ per 1M tokens: $3.75
Sample request (10K in, 2K out), $: $0.015
Context window, tokens: 1.05M
Price checked on: October 31, 2026
Official pricing page: ai.google.dev

These are standard rates on Google’s own API. Cached input is billed at $0.075 per million tokens. A request with 10,000 input tokens and 2,000 output tokens costs about $0.015 before caching or batch discounts. The API model name is gemini-3.8-flash, and the context window is 1.05M tokens. These rates run through December 31, 2026. From January 1, 2027 Google doubles them to $1.50 input, $7.50 output and $0.15 cached input, which takes the same request to about $0.03.

Within Google’s current lineup, Gemini 3.5 Flash-Lite handles it for about $0.008.

Max output, tokens: 65.54K
Input types: Text, image, video, audio, PDF
Open weights: No
Batch pricing: 50% off standard rates
Pricing notes: Google has scheduled a price rise: from January 1, 2027 input goes to $1.50, output to $7.50 and cached input to $0.15 per 1M tokens.
Sources: Page URL Checked
Gemini Developer API pricing https://ai.google.dev/gemini-api/docs/pricing 2026-10-19
OpenRouter model listing (context and output limits) https://openrouter.ai/models 2026-09-29

Page	URL	Checked
Gemini Developer API pricing	https://ai.google.dev/gemini-api/docs/pricing	2026-10-19
OpenRouter model listing (context and output limits)	https://openrouter.ai/models	2026-09-29

Price changes for this model

Effective	Change	Was	Now	Official source
January 1, 2027	Price increase	$0.75 input, $3.75 output, $0.075 cached input per 1M tokens	$1.50 input, $7.50 output, $0.15 cached input per 1M tokens	ai.google.dev

Questions

How much does the Gemini 3.8 Flash API cost?

Gemini 3.8 Flash costs $0.75 per million input tokens and $3.75 per million output tokens on Google’s own API. Cached input costs $0.075 per million tokens.

What is the API model name for Gemini 3.8 Flash?

Use gemini-3.8-flash in API calls to Google. The context window is 1.05M tokens, and a response can run to 65,536 output tokens.

What does one Gemini 3.8 Flash request cost?

A request with 10,000 input tokens and 2,000 output tokens costs about $0.015 at standard rates, before caching or batch discounts. Batch requests get 50% off standard rates.

Will Gemini 3.8 Flash prices change?

Yes. Google has scheduled a price rise: from January 1, 2027 input goes to $1.50, output to $7.50 and cached input to $0.15 per 1M tokens.

Sources

Prices are read from each provider’s official pricing page: OpenAI, Anthropic, Google Gemini API, xAI, DeepSeek and Mistral AI. Context and output limits that a provider does not publish come from OpenRouter’s model listing. Each model’s Sources field lists the pages used and the date each was checked. How we check prices · Price change log