How much does Gemini 4 Argon cost?

Gemini 4 Argon will launch at an introductory price of $2 per million input tokens and $10 per million output tokens, with cached input at $0.10 per million. After the introductory period, the price rises to $4 input and $20 output per million tokens.

When will Gemini 4 Argon be available in the API?

Google has not given a date. Argon is rolling out first to trusted cyber defenders and testers. Google says paid API customers and Google AI Ultra subscribers will be first in line when access widens.

How long does the Gemini 4 Argon introductory price last?

Google has not said. The announcement only states that $4 per million input tokens and $20 per million output tokens apply once the introductory period ends.

What is the Gemini 4 Argon output limit?

Up to 1 million output tokens in a single response, up from 64K on earlier Gemini models. Google has not announced the context window yet.

Gemini 4 Argon: API Pricing, Context Window and Specs

Gemini 4 Argon is Google’s new frontier model, announced on September 30, 2026. Google aims it at long, multi-step work in software engineering, enterprise knowledge work such as legal and finance, and cybersecurity defense, and raised its output limit to 1 million tokens, up from 64K.

Argon is not yet available in the API. Google is giving access first to trusted cyber defenders and testers, then to paid API customers and Google AI Ultra subscribers. It will launch at an introductory price of $2 per million input tokens and $10 per million output tokens, rising to $4 and $20 once the introductory period ends.

Input: $2
Output: $10
Cached input: $0.10
Cache write: Not announced
Batch: Not announced
Long context: Not announced

USD per 1M tokens at the introductory price, which later rises to $4 / $20. Source: Google announcement, checked Oct 2, 2026.

Quick estimate

Input tokens

Output tokens

Cost per request

$0.009

Gemini 4 Argon cost calculator

Gemini 4 Argon pricing details

Introductory price: $2 input and $10 output per 1M tokens. Google has not said how long the introductory period lasts.
After the introductory period: $4 input and $20 output per 1M tokens.
Cached input is 95% cheaper than regular input: $0.10 per 1M tokens at the introductory price. Google has not published the cached rate that applies after the introductory period.
Batch pricing, cache storage fees, long-context pricing and the context window have not been announced.

What Gemini 4 Argon costs in practice

Standard-tier cost with no caching, for a few common request shapes.

Workload	Tokens in / out	Per request	Per 10,000 requests
Chatbot	500 / 300	$0.004	$40.00
RAG Q&A	4,000 / 500	$0.013	$130
Coding agent	30,000 / 2,000	$0.08	$800
Summarization	8,000 / 600	$0.022	$220

Gemini 4 Argon specs

Context window: Not announced
Max output tokens: 1M
Released: Not yet
Status: Announced Sep 30, 2026; not yet in the API
API model ID: Not announced
Input types: Text, images, video and documents
First access: Trusted testers, then paid API customers and Google AI Ultra subscribers

From the official announcement.

Gemini 4 Argon vs similar models

Model	Provider	Input $/1M	Output $/1M	Cached $/1M	Context
Gemini 4 Argon Google	Google	$2	$10	$0.10	—
Claude Opus 5.5 Anthropic	Anthropic	$4	$20	$0.20	1M
Gemini 3.1 Pro Preview Google	Google	$2	$12	$0.20	1.05M
GPT-6.1 Sol OpenAI	OpenAI	$2	$10	$0.10	1.05M
GPT-6 Astra OpenAI	OpenAI	$10	$50	$1	1.05M
Claude Sonnet 5.5 Anthropic	Anthropic	$2	$10	$0.20	1M
Grok 4.7 xAI	xAI	$2	$6	$0.50	500K