Gemini 4 Carbon
Last verified October 31, 2026 · Google pricing ↗$2.00/1M input · $10.00/1M output · 1.0M context · Google
Gemini 4 Carbon is listed at $2.00 per 1M input tokens and $10.00 per 1M output tokens from Google, with a 1.0M-token context window. A typical chat reply (1,500 tokens in, 400 out) costs $0.0070, or $70.00 per 10,000 requests. On that workload it is cheaper than 42 of the 168 other buyable models tracked here.
Limited access
Not generally available
Gemini 4 Carbon is not on Google’s open price list. Access is gated to vetted partners or a waitlist, so the rate below is what those customers pay rather than something you can sign up for. It is excluded from the calculator’s default model list and from every ranking.
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What Gemini 4 Carbon Costs Per Request
At $2.00 per 1M input and $10.00 per 1M output tokens, before caching or batch discounts.
| Workload | Input / output tokens | Per request | Per 10,000 requests |
|---|---|---|---|
| Chat reply | 1,500 / 400 | $0.0070 | $70.00 |
| RAG answer over retrieved docs | 8,000 / 600 | $0.022 | $220.00 |
| Coding-agent step | 30,000 / 2,000 | $0.080 | $800.00 |
Gemini 4 Carbon vs Similarly Priced Models
Nearest buyable models by price, with the RAG answer above (8,000 in / 600 out) priced on each.
| Model | Input /1M | Output /1M | Context | RAG answer |
|---|---|---|---|---|
| Gemini 4 Carbon Google | $2.00 | $10.00 | 1.0M | $0.022 |
| Gemini 4 Argon Google | $2.00 | $10.00 | 1.0M | $0.022 |
| GPT-6.1 Sol OpenAI | $2.00 | $10.00 | 1.1M | $0.022 |
| Claude Sonnet 5.5 Anthropic | $2.00 | $10.00 | 1.0M | $0.022 |
Alternatives to Gemini 4 Carbon
Pricing Details
GoogleAnnounced October 28, 2026. ACCESS: a subset of cyber defenders first, then more trusted partners through the Fairwind Program; developers, businesses and consumers 'as soon as possible', no date. Argon followed the same path and reached the Gemini API 13 days after announcement. As of 2026-10-31 Carbon has NO row on ai.google.dev pricing and no published model ID, so sourceUrl is the launch post (the only Google page with a rate). INTRODUCTORY card $2.00 input / $10.00 output, same as Argon; cached input '95% off input token price' ($0.10, derived). 'After the introductory period expires' $4.00 / $20.00 (cached $0.20 derived), identical to Claude Opus 5.5 and to Argon from December 1, 2026. NO end date published for the intro price, so priceSchedule is not set; budget at $4/$20. Not published: batch, priority, long-context step, cache write or storage fee (Argon is implicit-caching only with no write fee), context window (1M per Artificial Analysis). Artificial Analysis Intelligence Index v5.0 (high, the only setting tested, read 2026-10-31): 59, #1 of 58, $7.76 per index task priced at $4/$20 ($3.88 at the intro card, every line halves), 200M output tokens on the index, 84.6 tok/s, 118.6s TTFT. Same index read: Opus 5.5 max 58 $10.04 (220M tokens, 729.6s TTFT), Opus 5.5 xhigh 57 $6.05, GPT-6 Astra max 57 $6.24, GPT-6.1 Sol max 55 $1.27, Gemini 4 Argon high 50 $7.68 (110M tokens, priced by AA at $4/$20). Google-reported: SEC-bench Pro 88.2%, ExploitGym 54.8%, CWE-bench 71.0%, WebDev Arena 1768 Elo (#4, +89), Gray Swan IPI 0.0% attack success (Argon 0.7%), secure code generation more than 2x Argon. Estimated tokens (different tokenizer).
Input / 1M tokens
$2
Output / 1M tokens
$10
Context Window
1.0M
Max Output
1.0M
Price History
Launched at current price on 2026-10-28. No price changes recorded since.
Frequently Asked Questions
Common questions about Gemini 4 Carbon pricing and usage
How much does Gemini 4 Carbon cost?
Gemini 4 Carbon costs $2 per 1 million input tokens and $10 per 1 million output tokens. This pricing is set by Google.
What tokenizer does Gemini 4 Carbon use?
Gemini 4 Carbon uses the cl100k_base tokenizer. This tokenizer has a vocabulary of ~100,000 tokens and is widely used across many models.
What is Gemini 4 Carbon's context window?
Gemini 4 Carbon supports a context window of 1.0M tokens (1,000,000 tokens). The maximum output length is 1.0M tokens.
How does Gemini 4 Carbon compare to other models?
On an 8,000-token-in, 600-token-out RAG answer, Gemini 4 Carbon costs $0.022 per request. The nearest-priced alternatives cost: Gemini 4 Argon (Google) $0.022, GPT-6.1 Sol (OpenAI) $0.022, Claude Sonnet 5.5 (Anthropic) $0.022. The table above lists their full rates and context windows.
How do I count tokens for Gemini 4 Carbon?
Use the token counter at the top of this page or visit the homepage calculator. Paste your text and it will show the exact token count and cost for Gemini 4 Carbon using the cl100k_base tokenizer.