NewModelHubCalculate Your Cost — Intro vs December 1
Caching is implicit only: repeated prefixes automatically bill at the cached rate — there is no explicit cache API and no separate cache storage price on the official table. Enter cache-hit tokens separately; do not include them in uncached input.
Your Estimate
Cost per request (intro): $0.034800
Monthly cost, intro (through Nov 30): $3,480.00
Monthly cost, from Dec 1: $6,960.00
December bill is +$3,480.00 (+100%) on the same workload.
Gemini 4 Argon Rate Card (per 1M tokens)
| Tier | Intro input | Intro output | Intro cached | Dec 1 input | Dec 1 output | Dec 1 cached |
|---|---|---|---|---|---|---|
| Standard | $2.00 | $10.00 | $0.10 | $4.00 | $20.00 | $0.20 |
| Batch | $1.00 | $5.00 | $0.05 | $2.00 | $10.00 | $0.10 |
| Flex | $1.00 | $5.00 | $0.05 | $2.00 | $10.00 | $0.10 |
| Priority | $3.60 | $18.00 | $0.18 | $7.20 | $36.00 | $0.36 |
Rates from Google's official Gemini API pricing page (ai.google.dev/gemini-api/docs/pricing, page last updated October 22, 2026 UTC), verified October 25, 2026 (Asia/Shanghai). Model ID: gemini-4-argon. Introductory rates apply through November 30, 2026; every tier doubles starting December 1, 2026. Unified input-output context window of 1,048,576 tokens — one rate across the whole window, no length-based tiers on the official table. Max output 65,536 tokens by default (1,048,576 with long decode). Implicit caching only; explicit caching is not supported; no separate cache storage price is listed. Output billing includes thinking tokens. No free tier.
What Drives Your Bill
- December 1 doubles everything. The same workload costs exactly 2× from December 1 on every tier — the calendar is your biggest lever. Front-load evaluations and bulk jobs into November while intro rates last.
- After December 1, Batch/Flex cost what Standard costs today. Dec-1 Batch/Flex ($2.00/$10.00) equals intro Standard — switching a delay-tolerant workload to Batch or Flex fully offsets the hike.
- Output includes thinking tokens. Deeper reasoning raises the bill even when the visible answer is short — cap reasoning effort where the task allows, and budget output generously for agentic work.
- Implicit cache is a 95% discount — use it. Repeated prefixes automatically bill at $0.10 (intro) instead of $2.00 fresh input. Keep system prompts, tool schemas, and reused context stable and prefix-aligned so hits actually happen.
- One rate across the whole 1M window. Unlike older Gemini models with above-200K surcharges, Argon's official table shows a single rate per tier across the unified 1,048,576-token window — long context costs the same per token as short context.
Related tools
FAQ
How much does Gemini 4 Argon cost?
Official Google API introductory list price through November 30, 2026 is $2.00 per million input tokens, $10.00 per million output tokens, and $0.10 per million cached-input tokens on Standard. Batch and Flex are $1.00/$5.00/$0.05; Priority is $3.60/$18.00/$0.18.
What happens to Gemini 4 Argon pricing on December 1, 2026?
Every tier doubles starting December 1, 2026. Standard becomes $4.00/$20.00/$0.20, Batch and Flex become $2.00/$10.00/$0.10, and Priority becomes $7.20/$36.00/$0.36 per million input, output, and cached-input tokens.
How does Gemini 4 Argon caching work?
Caching is implicit only: repeated prefixes automatically receive the cached-input rate, a 95% discount off input price. Explicit caching is not supported for this model, and the official pricing table lists no separate cache storage price.
What are the Batch, Flex, and Priority tiers?
Batch and Flex trade speed for half the Standard token rates, for work that can wait. Priority costs 1.8 times Standard for faster, more reliable responses. All four tiers double on December 1, 2026.
Is this an official Google tool?
No. It is an unofficial, fan-made estimator. Google's invoice and ai.google.dev pricing are authoritative. Model ID gemini-4-argon; no free tier; unified input-output context window of 1,048,576 tokens; output billing includes thinking tokens.
Methodology & sources: rates verified against Google's official Gemini API pricing page on October 25, 2026 (Asia/Shanghai) — https://ai.google.dev/gemini-api/docs/pricing. Estimates exclude taxes and reseller markups. Your invoice follows metered usage.