Gemini 4 Argon is available on launch day

Google released Gemini 4 Argon on October 13, and it's in General Input the same day. Every workspace can pick it for specialists, workflows, and chats, and it runs on our keys with no setup. If your Gemini subscription includes Argon, Token Tunnel offers it on the plan you already pay for. Compare it with every other model on the models page.

How it works

• Pricing. Google's introductory rate runs through November 30: $2 input and $10 output per million tokens, and $0.10 per million cached input tokens. Google's list price doubles on December 1.
• Window. 1M tokens of context, with image, PDF, and video input.
• Effort. Argon defaults to high, and low and medium are there when you want a faster reply. In our tests on every route, high always reasoned before answering, while low and medium almost never did, even on hard problems.
• Routes. Google Vertex AI serves it first, with Vercel AI Gateway and OpenRouter behind it. When it's overloaded, runs fall back to Claude Opus 5.5, then GPT-6.1 Sol.
• Token Tunnel. Google offers Argon in Antigravity on AI Ultra and Enterprise plans. The tunnel lists it as soon as your signed-in Gemini account serves it, under the same name as the hosted model.