Short answer
Gemini Krypton is not out, and Google hasn't announced it. As of November 9, 2026, the only Gemini 4 model in Google's Gemini API model list is Gemini 4 Argon. Google has also announced Gemini 4 Carbon, which is open only to a group of cyber defenders. Everything about Krypton so far comes from leaks.
- Leak, not officially confirmed: on November 9, X user @chetaslua posted a side-by-side test of Gemini Krypton, Gemini 4 Carbon and Gemini 4 Argon, and called it "the first checkpoint of Krypton-a" (post). Another account that follows new models, @koltregaskes, wrote the same day that "Gemini Krypton is real" (post).
- What you can use now: Gemini 4 Argon (
gemini-4-argon), the Gemini 4 model open to developers, and for long coding tasks Claude Opus 5.5 (claude-opus-5-5). Both work on TeamoRouter with the same key. The Gemini Krypton upcoming page tracks its status.
New accounts start with a $0 balance — top up before your first request. Top up from $5. If a request returns 402 (400 on the OpenAI format) with "wallet balance is insufficient", your balance is empty — your base URL and key are fine. Top up and retry.
Until Gemini Krypton is out, use Gemini 4 Argon or Claude Opus 5.5 with one key
What the leaks say
These are leaks, not officially confirmed.
- @chetaslua's test (November 9): he ran the same prompt on Gemini Krypton, Gemini 4 Carbon and Gemini 4 Argon. He wrote that Krypton took about twice as long and wrote about twice as much code, called it "the most diligent Google model I've tested", and said it was "the first checkpoint of Krypton-a". Later posts in the thread show front-end and SVG output with the prompts used.
- @koltregaskes (November 9): "Gemini Krypton is real and first checkpoint is looking good, sounds like a BIG model."
- Where it fits: some posts say Krypton may be the next version of Gemini 4. No one has posted an official source, a model ID or a date.
We found no Gemini Krypton in Google's Gemini API docs, model list, changelog or blog.
What Google has confirmed about Gemini 4
| Gemini 4 Argon | Gemini 4 Carbon | Gemini Krypton | |
|---|---|---|---|
| Status | Announced September 30, 2026; open to developers | Announced October 28, 2026; open to a group of cyber defenders | Leaks only, not officially confirmed |
| Model ID | gemini-4-argon |
Not open to developers yet | Not announced |
| Official price (per 1M tokens) | $2 input / $10 output through November 30, then $4 / $20 | $2 / $10 introductory, then $4 / $20 | Not announced |
Argon and Carbon figures come from the Gemini API model list and Google's Gemini 4 Carbon announcement. More detail: Gemini 4 Carbon: release and access and Gemini 4 Argon API.
Google names its Gemini 4 models after chemical elements: Argon and Carbon are official, and leaks use Hydrogen for a Flash tier (what we know about Gemini 4 Flash). Krypton fits that pattern, but Google hasn't said where it would sit.
What isn't known yet
Whether Gemini Krypton will ship, when, its final name and model ID, its price, how it compares with Carbon on public benchmarks, and whether it will come to the Gemini API. We won't guess.
Use these models today
- Gemini 4 Argon (
gemini-4-argon): the Gemini 4 model open to developers now, for harder, multi-step work. See Gemini 4 Argon API. - Claude Opus 5.5 (
claude-opus-5-5): Anthropic's flagship, a strong pick for long coding tasks. Official price $4 / $20 per million tokens. See Claude Opus 5.5 API key and pricing.
Both use the same TeamoRouter key and base URL (https://api.teamorouter.com/v1 for the OpenAI-compatible format). Current prices are on the pricing page.
If Gemini Krypton ships: if it comes to TeamoRouter after release, change only model in your request to the ID Google publishes. The base URL and key stay the same.
We'll update this page if Google announces it
If Google announces Gemini Krypton, we'll update this article with the official name, model ID and price, and whether it's available on TeamoRouter. You can also vote for it on the Gemini Krypton upcoming page.
Paying for usage
No subscription: you top up a balance from $5, and each request is charged by the tokens it uses, by card or with USDT, USDC or ETH. The same key also works for Claude and GPT models.
FAQ
Is Gemini Krypton out?
No. As of November 9, 2026, Google hasn't announced Gemini Krypton, and it isn't in the Gemini API. There are only posts from testers on X.
When will Gemini Krypton be released?
Google hasn't given a date or confirmed the model. The posts describe a first checkpoint, so a release may still be weeks away. We'll update this article if Google announces it.
Is Gemini Krypton part of Gemini 4?
Not confirmed. Some posts say it may be the next version of Gemini 4, and the element name fits the Gemini 4 pattern, but Google hasn't said so.
Can I use Gemini Krypton now?
No. Use Gemini 4 Argon (gemini-4-argon) or, for long coding tasks, Claude Opus 5.5 (claude-opus-5-5).