Unofficial guide. Not affiliated with Google.
Last verified: 21 October 2026
Warning: every Gemini 4 Argon API price on this page doubles on 1 December 2026. The rates in the left-hand columns are introductory and run only until 30 November 2026. Budget on the right-hand columns if your usage continues into December.
These are Google’s confirmed prices for Gemini 4 Argon (model ID gemini-4-argon), taken from Google’s pricing page as reported by multiple sources. All figures are per 1M tokens (all prices in USD).
Official source: Google’s Gemini API pricing page.
The full table: before and after 1 December 2026
| Tier | Input until 30 Nov 2026 | Input from 1 Dec 2026 | Output until 30 Nov 2026 | Output from 1 Dec 2026 |
|---|---|---|---|---|
| Standard | $2 | $4 | $10 | $20 |
| Batch / Flex | $1 | $2 | $5 | $10 |
| Priority | $3.60 | $7.20 | $18 | $36 |
| Cached input | $0.10 | $0.20 | – | – |
What the table does not show at a glance
- Output price includes thinking tokens. The reasoning tokens Argon generates before its visible answer are billed at the output rate, so a request’s real output cost is higher than its visible text suggests. The Gemini API cost calculator models this explicitly.
- There is no free tier. Argon on the API is paid only.
- Caching is implicit only, and cached input is billed at the cached rate above.
Consumer access is a different price book
Subscribers reach Argon in the Gemini app and AI Mode through Google AI Pro ($19.99/mo) or Ultra. A Pro subscription does not include API or AI Studio access – for the API you need Ultra or a paid API key, billed at the rates in the table above. Antigravity access is Ultra-only.
For the model itself – access routes, benchmarks and the FAQ – see Gemini 4 Argon Explained: Access, Pricing and the 1 December Price Rise.
Last verified: 21 October 2026
Unofficial guide. Not affiliated with Google.
Wondering if any of Argon is free?
It is not – not on the API and not in the app. The short, complete answer is in Is Gemini 4 Free? No – What Google Actually Charges for Argon.