Google's Gemini 3.8 Flash: $0.75/$3.75 now, double from January 2027

Google made Gemini 3.8 Flash (gemini-3.8-flash) generally available in the Gemini API on September 2, 2026. Google’s pricing page calls it its most intelligent Flash model, built for long-running software engineering and agent work. Its current price runs through December 31, 2026, and the page already lists double prices from January 1, 2027.

What it costs

Paid Standard tier, per 1M tokens, from Google’s pricing page on October 18, 2026:

Per 1M tokens	Through Dec 31, 2026	From Jan 1, 2027
Input	$0.75	$1.50
Output (incl. thinking)	$3.75	$7.50
Cached input	$0.075	$0.15

• Batch and Flex cost half in 2026: $0.375 input and $1.875 output.
• Priority costs $1.35 input and $6.75 output in 2026.
• Cache storage is $0.50 per 1M tokens per hour in 2026.
• On the free tier, input, output and caching are free of charge, but Google uses your content to improve its products, and search grounding isn’t included.

The older Gemini 3.6 Flash has exactly the same prices and the same January 2027 increase.

Specs

Gemini 3.8 Flash
Input limit	1,048,576 tokens
Output limit	65,536 tokens
Input	Text, images, video, audio and PDF
Output	Text
Thinking levels	Low, medium, high (minimal returns an error)
Also supports	Function calling, search grounding, computer use (preview), Batch API

Older Flash calls now land here

On October 8, 2026, Google stopped serving Gemini 3.7 Flash as its own model. The deprecations page says requests sent to gemini-3.7-flash are now routed to Gemini 3.8 Flash automatically, and the old model can no longer be picked in Google AI Studio.

What to do

If you plan a product on Gemini 3.8 Flash, price it at the 2027 rates. Output tokens include thinking, so test how many your prompts use at each thinking level before you commit.