Modelpeers

Gemini 4 Carbon changelog

Every change to Gemini 4 Carbon that Modelpeers has recorded, newest first, each with the source it came from. The record starts Oct 28, 2026.

All (2)Releases (1)Prices/limits (1)

October 2026

Gemini 4 Carbon character

Gemini 4 Carbon

Model at Google

Price change

Gemini 4 Carbon will launch at $2 input and $10 output per million tokens

Carbon launches at the same introductory price as Argon, with cached input tokens at 95% off. After the introductory period the price rises to $4 per 1M input tokens and $20 per 1M output tokens.

Before

$2 input and $10 output per 1M tokens (introductory)

After

$4 input and $20 output per 1M tokens

Who is affected:
Developers planning to use Carbon should budget for the price doubling after the introductory period.
What to do:
Plan for the $4 and $20 per million token price after the introductory period.

Get this changelog in a feed reader with the RSS feed.