Large language model
Gemini 4 Argon
Gemini 4 Argon is Google DeepMind's flagship reasoning model, released on 13 October 2026 as the first member of the Gemini 4 family. It accepts text, images, video, audio and PDF and outputs text, and Google positions it for complex software engineering, science, agentic work and long-decode generation up to 1M tokens.
Last reviewed 28 Oct 2026 · by Google DeepMind
Facts at a glance
| Developer | Google DeepMind |
|---|---|
| Released | 13 October 2026 source |
| API name | gemini-4-argon source |
| Context window | 1,048,576 tokens (unified input and output limit) source |
| Max output | 65,536 tokens by default; up to 1,048,576 with long decode source |
| API price | $2 per 1M input tokens and $10 per 1M output tokens through 30 November 2026; $4 and $20 from 1 December 2026 source |
| Modalities | Text, image, video, audio and PDF input; text output |
| Free tier | Not available on the Gemini API free tier source |
What Gemini 4 Argon is used for
Google describes Gemini 4 Argon as a model for deep, multi-step work in coding, finance, legal, cybersecurity and science. It supports function calling, code execution, search grounding, file search, URL context, structured outputs and a preview of computer use in the Gemini API. Thinking can be set to low, medium or high. Only implicit caching is supported. Google publishes a separate model card with safety evaluations under its Frontier Safety Framework.
Questions people ask
- When was Gemini 4 Argon released?
- Google announced general availability on 13 October 2026 in the Gemini API, Google AI Studio, Google Antigravity, the Gemini app and AI Mode in Search for paying subscribers.
- How much does Gemini 4 Argon cost?
- The introductory API price is $2 per million input tokens and $10 per million output tokens through 30 November 2026. From 1 December 2026 it rises to $4 and $20.
- What is the context window of Gemini 4 Argon?
- 1,048,576 tokens, shared between input and output, according to the Gemini API model page.