Gemini 4 Argon
Google's flagship reasoning model for complex software engineering and long multi-step agents.
From $2 in / $10 out per 1M tokensLarge code migrations and long agent workflows
Intro price through Nov 30, 2026, then $4 / $20. Paid tier only, no free tier. Checked 2026-10-14.
Quick start
Create an API key, store it in an environment variable, and send one small test request before wiring the model into your app.
Good and not so good
- Frontier model at an intro price
- Up to 1M-token generation
- Not on the free tier
- Price doubles on Dec 1, 2026
Use cases with Gemini 4 Argon
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