Gemini 4 Argon is Google DeepMind's flagship model, positioned for long software engineering tasks, enterprise knowledge work and cyber defense. Google announced it on September 30, 2026, for cyber defenders in its Fairwind Program, then made it generally available on October 13, 2026, for paid Gemini API customers and Google AI Pro and Ultra subscribers.
Key facts
| Item | Gemini 4 Argon |
|---|---|
| Maker | Google DeepMind |
| Announced | September 30, 2026 (Fairwind only) |
| Generally available | October 13, 2026 |
| API model ID | gemini-4-argon |
| Context window | 1,048,576 tokens, input and output combined |
| Default max output | 65,536 tokens, up to 1,048,576 with long decode |
| Inputs | Text, image, video, audio and PDF; text out |
| API price per million tokens | $2 input, $10 output through November 30, 2026; $4 and $20 from December 1 |
Sources: Google's launch post, the Gemini 4 Argon model page and the Gemini API pricing page, checked October 24, 2026.
Pricing details
Argon is on the paid API tier only, not the free tier. Its introductory price is $2 per million input tokens and $10 per million output tokens, with implicit cache reads at $0.10, through November 30, 2026. From December 1 the price doubles to $4, $20 and $0.20. Batch and Flex tiers cost half the standard rate. Explicit caching is not supported.
Where to use Gemini 4 Argon
- Gemini app and AI Mode in Search: for Google AI Pro and Ultra subscribers in the Gemini app.
- Developers: the paid Gemini API, Google AI Studio, Android Studio and Google Antigravity. In AI Studio, Argon is not available on the Free or Google AI Pro plans.
- Cyber defenders: a build without cyber guardrails through the Fairwind Program.
Features
Argon supports low, medium and high thinking levels, search grounding, code execution, function calling and computer use in preview. It does not generate images and does not support the Live API.
How it compares
Google reports strong results on long software engineering and video understanding, and the independent Artificial Analysis index placed Argon level with GPT-6 Astra. At the introductory price it costs the same per token as GPT-6.1 Sol. For access details by plan, read Gemini 4 Argon Release Date; for a comparison with rival assistants, see ChatGPT vs Claude vs Gemini vs Grok. The maker's profile is on our Google DeepMind page, and the release timeline shows Argon among this year's launches.