Gemini 4 Carbon release date: November 10, 2026

Gemini 4 Carbon launched for paid API developers on November 10, 2026. For online use now, start with Gemini 4 Carbon chat. Google announced the model earlier, on October 28; that initial announcement described limited access. The November 10 launch announcement opens Carbon through the Gemini API in Google AI Studio and Gemini for business, with consumer-product rollout subject to the access conditions below.

Updated November 11, 2026: Carbon is now available in TryCarbon AI chat. New conversations use Carbon by default, and Argon remains selectable. This page replaces our earlier pre-launch status with the confirmed release.

Carbon announcement and release timeline

| Date in 2026 | Event | What changed | | ------------ | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------- | | October 28 | Google announces Carbon | Initial access for selected cyber defenders and trusted partners | | November 2 | Google publishes its October recap | Carbon is still described in pre-release testing ahead of broader access | | November 10 | Google announces Carbon availability | Paid API developers and enterprises gain access; Google AI Ultra rollout begins across named products | | November 11 | TryCarbon AI verifies its integration | A real Carbon API request returns gemini-4-carbon and token usage; Carbon becomes the default new-chat model here |

The original introduction and October recap remain useful historical sources. Their limited-access language describes the earlier rollout, not the current paid API release.

Is the public Carbon API available?

Yes, for paid API developers under Google's access and billing requirements. The model identifier is gemini-4-carbon. Our November 11 check confirmed that the API identifies this model and returns a generated response with usage metadata. Developers still need a supported account, billing and available quota; a public launch does not remove those requirements.

If you want to use the model rather than build an integration, open chat, sign in and add credits. TryCarbon AI provides the connection, so you do not need to create a Google Cloud project or paste an API key into this website. See where to find Carbon for the distinction between hosted chat and direct developer access.

Is Carbon available in the Gemini app and Antigravity?

Google's November 10 announcement describes rollout to Google AI Ultra subscribers in Antigravity, the Gemini app and AI Mode. Check the model options in the relevant product and your account. Do not read the API launch date as a promise that every free account, every subscription plan or every region receives the same option immediately.

For work accounts, access can also depend on the organization's product and permissions. A model name in a news article is not evidence that a particular workspace administrator has enabled it. Google product subscriptions are separate from TryCarbon AI credits; buying a pack here does not upgrade a Google account.

Official channels and what their dates mean

| Source or channel | Date / scope | What it establishes | | ---------------------------------- | ----------------------------- | ---------------------------------------------------------------------------------- | | Original Google introduction | October 28, 2026 | Model announcement and limited initial access | | Google availability announcement | November 10, 2026 | Paid API release and named consumer-product rollout | | Gemini app / Antigravity / AI Mode | Rollout announced November 10 | AI Ultra eligibility; an individual account may receive access on a different date | | TryCarbon AI integration record | November 11, 2026 | Our successful model request, not a separate Google release |

The announcement date, API launch date and the date an account receives a feature describe different events. Cite the specific channel rather than calling all three “the release date.” The official introduction and launch announcement are linked above; Google’s current AI plan page describes subscription access.

For online chat choices and their payment models, read where to chat with Carbon. For regional requirements and service interruptions on this website, see Carbon status.

Which release date should I cite?

Use October 28, 2026 for the original announcement and November 10, 2026 for the paid API launch. Include the product and eligible users when describing app availability. November 11 is this website's integration verification date, not Google's launch date.

For current support inside this service, use Carbon status. For model strengths, published benchmarks and their limitations, read Carbon vs. Argon. TryCarbon AI is an independent service, not an official Google product.