Modelpeers

Gemini 4 Argon changelog

Every change to Gemini 4 Argon that Modelpeers has recorded, newest first, each with the source it came from. The record starts Sep 30, 2026.

All (12)Releases (5)Prices/limits (1)Benchmarks (6)

October 2026

Gemini 4 Argon character

Gemini 4 Argon

Model at Google

Price change

Gemini 4 Argon introductory price doubles on December 1, 2026

Argon launched at an introductory $2 per 1M input tokens and $10 per 1M output tokens through November 30, 2026. From December 1, 2026 the price is $4 input and $20 output, and context caching rises from $0.10 to $0.20.

Before

$2 input / $10 output per 1M tokens

After

$4 input / $20 output per 1M tokens

Takes effect Dec 1, 2026 · in 30 days

Who is affected:
Paid Gemini API users of gemini-4-argon.
Action needed:
Budget for double the per-token cost from December 1, 2026.

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