Google Gemini 3.8 Flash - Box Dev Docs

According to Google, Gemini 3.8 Flash is the next iteration in the Gemini 3 model family, building on Gemini 3.7 Flash. It delivers performance advancements across software engineering and agentic knowledge workflows.

Model details

Item	Value	Description
Model name	Google Gemini 3.8 Flash	The name of the model.
Model category	Standard	The category of the model: Standard or Premium.
API model name	`google__gemini_3_8_flash`	The name of the model that is used in the . You must provide this exact name for the API to work.
Compliance	ISMAP, FedRAMP Moderate, FedRAMP High, DoD IL4, DoD IL5	Government compliance frameworks and authorizations applicable to this model.
Hosting layer	Google	The trusted organization that securely hosts the LLM.
Model provider	Google	The organization that provides this model.
Release date	September 2nd, 2026	The release date for the model.
Knowledge cutoff date	March 2026	The date after which the model does not receive information updates.
Input context window	1m tokens	The number of tokens supported by the input context window.
Maximum output tokens	64k tokens	The number of tokens that can be generated by the model in a single request.
Empirical throughput	Not specified	The number of tokens the model can generate per second.
Open source	No	Specifies whether the model’s code is available for public use.

Additional documentation

For additional information, see official Google Gemini 3.8 Flash documentation.

Last modified on September 8, 2026