THE TICKER · GOOGLE · CHECKED DAILY · LAST CHANGE 2026-11-12
GEMINI 4 HYDROGEN API PRICING
What Google charges for Gemini 4 Hydrogen, in USD, cross-checked daily against the public pricing dataset. Effective price — if there's a promo running, this is the promo.
USAGE: <0.2% of OpenRouter tokens in the week of 2026-11-02. What people actually run. Source: OpenRouter (openrouter.ai/rankings), as of 2026-11-12.
NOTE: The only Gemini 4 with a free tier. Flat price with no scheduled step-up, so from 2026-12-01 it costs under 40% of Argon and Carbon ($4 in / $20 out). Cache reads $0.075.
WHAT THINGS ACTUALLY COST ON GEMINI 4 HYDROGEN
| Scenario | Tokens in / out | 1 run | 1,000 runs |
|---|---|---|---|
| A typical prompt (300 tokens in) | 300 / ~900 | $0.0072 | $7.20 |
| A 20-turn conversation (context re-sent) | 4,000 / ~4,000 | $0.04 | $36.00 |
| Summarizing a 10-page document | 8,000 / ~3,200 | $0.04 | $36.00 |
| One agent run (tools, retries, thinking) | 2,000 / ~12,000 | $0.09 | $93.00 |
| A code review request | 1,500 / ~3,750 | $0.03 | $30.38 |
Output sizes assume the same editorial ratios as the Burn Calculator (3x for prompts, 6x for agent runs). Estimates, not invoices.
VS. THE REST OF THE BOARD
“Same job” = a 1,000-token prompt with a 3,000-token reply, priced on both models. Cheaper is not always better. It is, however, always cheaper.
PRICE HISTORY
Gemini 4 Hydrogen joins the board at $1.50 in / $7.50 out per MTok, flat, and it's the only Gemini 4 with a free tier. When Argon and Carbon double to $4/$20 on Dec 1, Hydrogen costs under 40% of them.
Source: aistudio.google.com/docs/pricing · price last confirmed against the daily source on 2026-11-12. The full changelog lives at /pricing/changes.
NOW FIND OUT HOW MUCH OF THAT IS WASTE
Gemini 4 Hydrogen's price is fixed. Your token count isn't. Paste a real prompt into the Burn Calculator and see what it costs on Gemini 4 Hydrogen — and how much a leaner version would save at 1,000 runs. Or pull the whole board from the ticker.