# Gemini 4 Argon, Google’s newest model

By the SelGPT team. Updated October 15, 2026. Source: https://selgpt.app/models/gemini-4-argon

Gemini 4 Argon is Google’s newest frontier model, made widely available on 13 October 2026. In SelGPT it sits next to GPT-6.1 Sol, Claude and Kimi, and with Compare you can ask it, GPT-6.1 Sol and Claude the same question at once.

> Gemini 4 Argon is Google’s newest frontier model, built for hard problems and long, multi-step tasks. SelGPT includes it in Plus from $15.99 a month billed yearly, in the same chat as GPT-6.1 Sol, Claude Opus 5.5 and Kimi K3, and in Compare, where it answers side by side with GPT-6.1 Sol and Claude.

## What it is good at

- Hard reasoning, analysis and long, multi-step tasks.
- Large codebases and long documents.
- Seeing how Google’s best compares: put it side by side with GPT-6.1 Sol and Claude in Compare.

## Plans

It draws from your plan’s monthly allowance, shown as a percentage in the app. GPT-6 Luna stays unlimited on paid plans when the allowance runs out.

[See plans](https://selgpt.app/pricing)

## Questions

### Can I try Gemini 4 Argon without a Google AI subscription?

Yes. SelGPT includes Gemini 4 Argon in Plus, alongside GPT-6.1 Sol, Claude and Kimi, from $15.99 a month billed yearly.

### Can I compare Gemini 4 Argon with ChatGPT and Claude?

Yes. Compare sends one question to GPT-6.1 Sol, Claude Sonnet 5.5 and Gemini 4 Argon and shows their answers side by side in one reply.

## Related

- [SelGPT vs ChatGPT Plus](https://selgpt.app/compare/chatgpt-plus): SelGPT Plus vs ChatGPT Plus, side by side: price, the most capable model included, usage limits you can see, ads and how your chats are used.
- [AI for research](https://selgpt.app/ai-for-research): Research mode in SelGPT searches academic papers and writes a structured research report, with every quote checked against the paper. Plus and Pro.
- [AI for coding](https://selgpt.app/ai-for-coding): Use SelGPT as your AI coding assistant: write functions, explain errors, review pull requests and look up current docs, with a model built for code.
- [Models](https://selgpt.app/models): Every model in SelGPT: GPT-6 Luna, Claude Opus 5.5, GPT-6.1 Sol, Gemini 4 Argon, Gemini 3.8 Flash, Kimi K3, DeepSeek, MiMo, GLM and Qwen, in one chat.
- [GPT-6 Luna](https://selgpt.app/models/gpt-6-luna): Use OpenAI’s GPT-6 Luna in SelGPT for everyday questions, writing, files and images, unlimited within fair use on every paid plan.
- [Claude Opus 5.5](https://selgpt.app/models/claude-opus-5-5): Use Anthropic’s Claude Opus 5.5, ranked #1 on the Artificial Analysis Intelligence Index, in SelGPT Plus from $15.99 a month billed yearly.