Gemini 4 Argon — Google's Flagship At Premium 6×

October 14, 2026

Google's Gemini 4 Argon is now in the model selector for sustained software engineering, enterprise research, and autonomous agent work. You get a 1M-token context window, 65K output, multimodal input, tools, and medium-effort reasoning at Premium 6×.

What you can do

• Pin Gemini 4 Argon for work that has to hold together over a long run — large refactors, multi-stage research, and iterative tool loops.
• Pick it from Recommended. Gemini 4 Argon joins GPT-6.1 Sol, Grok 4.7, and Kimi K3 on the Recommended tab, which grows to seven picks; DeepSeek V4.1 Flash keeps its seat.
• Start from the new-chat card. It says Try out the latest Gemini 4 Argon and opens the picker on that row.
• Bring text, images, audio, video, or PDFs into the same turn. The model reads up to 1M tokens in one context and can return up to 65K output tokens.
• Use tools and structured output. Gemini 4 Argon can call Alfrada OS tools, act as a Swarm worker, and return schema-shaped results for workflows that need dependable handoffs.
• Tune the depth with Effort. Medium reasoning is the default; lower effort speeds up iterations, higher effort gives hard problems more room.

Where this shows up

You have a repository-wide migration that needs repeated searches, edits, tests, and corrections. Pin Gemini 4 Argon so one model keeps the plan coherent through the whole tool loop.

You are turning a stack of PDFs, screenshots, and call recordings into one decision memo. Gemini 4 Argon can reason across all of it in a single context and return the findings in a structured format.

You want a strong second opinion on a Swarm deliverable. Add Gemini 4 Argon as the coding or QA worker at Premium 6×.

Try it

• "Use Gemini 4 Argon to migrate this repository to the new API, run the focused tests after each stage, and keep fixing issues until the suite passes."
• "Compare this contract PDF with the policy document and meeting recording, then return every conflict as structured JSON with supporting evidence."
• "Add Gemini 4 Argon as the QA worker in this Swarm and have it challenge the implementation plan, edge cases, and test coverage."

Heads up

• Premium band — 6× tokens. Same band as GPT-6.1 Sol and Claude Sonnet 5.5; billed at the Premium multiplier on your plan quota.
• Auto can pick Gemini 4 Argon on Pro Max and Black. At quality 66 it clears the paid Auto floor (60), so Auto may route to it on the Workhorse tier. Pro's Auto stays inside its curated pool, so pin Gemini 4 Argon there. Pin it on any plan when you want it every turn.
• Hidden when EU Data Residency is on. Gemini 4 Argon is a global Google model, so EU-only accounts don't see it in the picker, Auto, or Swarm.
• Gemini 3.8 Flash and Gemini 3.1 Pro stay available. Pinned sessions are unchanged.
• No harness numbers yet. Can it Run Alfrada? does not show Gemini 4 Argon until it has a full run.