Model board / Gemini 4 Argon

Verified 2026-10-22 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

introductory through 2026-11-30; $4.00/$0.20/$20.00 from 2026-12-01. Not available on the free tier. No length tiering: one rate across the whole window. Grounding with Google Search bills apart: 5,000 free search requests a month, then $14 per 1,000

1,048,576 unified input-plus-output tokens; default synchronous max output is 65,536, rising to the full 1,048,576 with long decode, both stated on the model's own page

implicit caching only — explicit caching is not supported. Vision and audio input are not stated on the pages fetched this pass, so neither is claimed

Watch out

The introductory rate has an expiry date: budget $4/$20 from 2026-12-01, and the cached rate doubles with it ($0.10 to $0.20). Paid tier only, and every figure above is Google's own — no third party has replicated the launch benchmarks

What we would use it for

Long-horizon software engineering and multi-step agents inside Google's stack, at $2/$10 until the 1 December doubling

What this has cost, week by week

Output price at each refresh since 2026-10-22. A vendor change is the provider changing its price. Our correction means this board changed what it prints and the provider's charge did not move — the two are never merged, because publishing the second as the first would be a price rise that never happened.

Nothing has moved since we started tracking it.

Where these numbers came from

• https://ai.google.dev/gemini-api/docs/pricing
• https://ai.google.dev/gemini-api/docs/models/gemini-4-argon

No number on this page was written that was not read from one of those pages on 2026-10-22. If one is wrong, send us the source URL and it is corrected in the next weekly refresh, with a changelog line saying what was wrong — contact@naderu.com.

Jobs this is one of our picks for

• Project management — Long tool-driven sessions over project state (project-management)

Discussed in Naderu Weekly

• The contributor discount is real — if your repo already is — 2026-10-22

The rest of the board

This row sits alongside 76 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.