Gemini 4 Argon

Q: What is the API model name for Gemini 4 Argon?

Use gemini-4-argon in API calls to Google. Google describes a unified 1M-token context window and does not list a separate output limit.

Gemini 4 Argon API pricing is $2 per million input tokens and $10 per million output tokens through November 30, 2026.

Provider: Google
API model name: gemini-4-argon
Status: Current
Input, $ per 1M tokens: $2.00
Cached input, $ per 1M tokens: $0.10
Output, $ per 1M tokens: $10.00
Sample request (10K in, 2K out), $: $0.04
Context window, tokens: 1M
Price checked on: October 31, 2026
Official pricing page: ai.google.dev

These are standard paid-tier rates on Google’s own API, and the model is not available on the free tier. Google doubles them on December 1, 2026, to $4 input and $20 output. Cached input is billed at $0.10 per million tokens, rising to $0.20; Argon supports implicit caching only. A request with 10,000 input tokens and 2,000 output tokens costs about $0.04 until November 30 and about $0.08 afterward, before caching or batch discounts. The API model name is gemini-4-argon, and the context window is 1M tokens. Gemini 3.8 Flash runs the same request for about $0.015 until the end of 2026.

Open weights: No
Batch pricing: 50% off standard rates
Pricing notes: Google has scheduled a price rise: from December 1, 2026 input goes to $4, output to $20 and cached input to $0.20 per 1M tokens. Not available on the free tier. Google also lists an invite-only Contributor tier in private preview at $1 input, $5 output and $0.05 cached input through November 30, 2026 (doubling on December 1); content on that tier may be used to improve Google's products. Google does not list a separate output limit.
Sources: Page URL Checked
Gemini Developer API pricing https://ai.google.dev/gemini-api/docs/pricing 2026-10-19
Gemini models (context window) https://ai.google.dev/gemini-api/docs/models 2026-10-19

Page	URL	Checked
Gemini Developer API pricing	https://ai.google.dev/gemini-api/docs/pricing	2026-10-19
Gemini models (context window)	https://ai.google.dev/gemini-api/docs/models	2026-10-19

Price changes for this model

Effective	Change	Was	Now	Official source
December 1, 2026	Promotion ends	$2 input, $10 output, $0.10 cached input per 1M tokens (promotional rates through November 30, 2026)	$4 input, $20 output, $0.20 cached input per 1M tokens	ai.google.dev

Questions

How much does the Gemini 4 Argon API cost?

Gemini 4 Argon costs $2 per million input tokens and $10 per million output tokens through November 30, 2026 on Google’s own API. From December 1, 2026 the rates are $4 input and $20 output. Cached input costs $0.10 per million tokens, then $0.20.

What is the API model name for Gemini 4 Argon?

Use gemini-4-argon in API calls to Google. Google describes a unified 1M-token context window and does not list a separate output limit.

What does one Gemini 4 Argon request cost?

A request with 10,000 input tokens and 2,000 output tokens costs about $0.04 through November 30, 2026 and about $0.08 from December 1, before caching or batch discounts. Batch requests are half the standard rate.

Will Gemini 4 Argon prices change?

Yes. Google has scheduled a doubling of every Argon rate on December 1, 2026.

Sources

Prices are read from each provider’s official pricing page: OpenAI, Anthropic, Google Gemini API, xAI, DeepSeek and Mistral AI. Context and output limits that a provider does not publish come from OpenRouter’s model listing. Each model’s Sources field lists the pages used and the date each was checked. How we check prices · Price change log