Gemini 4 Carbon vs Gemini 4 Argon
There is no quality verdict yet: the AIGROW small-business benchmark has not run either model. On price they match: both cost $2 in and $10 out per million tokens.
Run Gemini 4 Argon up to 50% below list price. $25 a month brings $110 of API credit and cancels any time; $25 once buys $100. US dollars, standard rate, shortest context band. Price only: the benchmark has not run both.
- Gemini 4 Carbon
- $10.00
- Gemini 4 Argon
- $10.00
- Gemini 4 Carbon, per M tokens
- $2 / $10
- Gemini 4 Argon, per M tokens
- $2 / $10
3,000 tokens in and 400 out each, at list price.
Google's two Gemini 4 models at the same list price, with Argon the faster one that spends fewer tokens per turn. 1,000 support replies cost $10.00 on either. Gemini 4 Carbon was released on 10 Nov 2026, Gemini 4 Argon was released on 13 Oct 2026.
What each one costs
The API price per million tokens and the cheapest app plan with each model, from the makers’ own pages. Each name opens that model’s full price page.
- Gemini 4 Carbon
- On the Google API, Gemini 4 Carbon costs $2 per million input tokens and $10 per million output tokens.
- Gemini 4 Argon
- On the Google API, Gemini 4 Argon costs $2 per million input tokens and $10 per million output tokens. In Gemini, the cheapest plan with it is Google AI Pro at $19.99/mo. Plan prices read 20 October 2026. AIGROW API credit runs Gemini 4 Argon at $1.00 / $5.00 per million input / output tokens, 50% below list price. See API credit
$25 a month brings $110 of API credit and cancels any time; $25 once buys $100.
Side by side
Each maker’s published rate for its standard tier. Cached input is what a repeated prompt prefix costs once the provider has stored it.
| Fact | Gemini 4 Carbon | Gemini 4 Argon |
|---|---|---|
| Maker | ||
| Tier | Flagships | Flagships |
| Input, per M tokens | $2.00 | $2.00 |
| Output, per M tokens | $10.00 | $10.00 |
| Cached input | $0.10 | $0.10 |
| Context window | 1.05M | 1.05M |
| Released | 10 Nov 2026 | 13 Oct 2026 |
| Weights | Closed weights | Closed weights |
What a job costs on each
1,000 runs of each job at the two list prices. The gap moves from job to job because the models price input, output and cached context differently.
| Job | Gemini 4 Carbon | Gemini 4 Argon | Cheaper |
|---|---|---|---|
| Support reply3,000 in, 400 out. | $10.00 | $10.00 | Even |
| Document summary25,000 in, 1,000 out. | $60.00 | $60.00 | Even |
| Agent task80,000 in (70,000 cached), 3,000 out. | $57.00 | $57.00 | Even |
The token counts are ours, chosen to look like real work; the prices are the makers’. A model with no published cache price bills the agent task’s repeated context at its full input rate.
The small print
What each base rate leaves out, from the makers’ own pages: surcharges, discounts, promotions and cache pricing.
- Gemini 4 Carbon
- Launch price through 2026-11-30; from 2026-12-01 it becomes $4 / $20, cached $0.20. Output includes thinking tokens. Implicit caching only. No long-context premium. Batch and Flex 50% off; Priority $3.60 / $18. Not on the Free tier. Max output 65,536, or up to 1,048,576 with long decode. Google’s pricing page
- Gemini 4 Argon
- Launch price through 2026-11-30; from 2026-12-01 it becomes $4 / $20, cached $0.20. Output includes thinking tokens. Implicit caching only. No long-context premium. Batch and Flex 50% off; Priority $3.60 / $18. Not on the Free tier. Google’s pricing page
Other comparisons
Every head to head on the list that involves Gemini 4 Carbon or Gemini 4 Argon.
Run Gemini 4 Argon up to 50% below list price
AIGROW API credit covers Gemini 4 Argon at published rates never above the list prices here, and $25 buys $100 of credit.
Prices checked 12 November 2026