Google DeepMind opens Gemini 4 Carbon to developers and consumers
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The gist
Google DeepMind made Gemini 4 Carbon available via its API and to Ultra subscribers on Nov 10.
Carbon's introductory API price undercuts Anthropic's Claude models until the end of November.
Background
Gemini 4 Carbon is the second public model of Google DeepMind's Gemini 4 generation, following Gemini 4 Argon, which launched about two weeks earlier. Google DeepMind is Google's AI unit; its SVP and chief AI architect Koray Kavukcuoglu wrote the launch post, saying Carbon "pushes the frontier even further" while Argon remains the better fit for most software engineering and knowledge work. Carbon was first limited to a subset of cyber defenders through the Fairwind Program while undergoing US government pre-release testing, and its staged rollout mirrors Argon's. The release comes as Google steps up competition with Anthropic and OpenAI in coding and cybersecurity systems, a field that had looked like a two-horse race between Anthropic and OpenAI.
How it unfolded
- Sep 30, 2026Gemini 4 Argon, the first public model of the Gemini 4 generation, was announced.
- Oct 13, 2026Gemini 4 Argon opened to paying users and developers.
- Oct 28, 2026Google DeepMind released Gemini 4 Carbon, initially limited to a subset of cyber defenders via the Fairwind Program while undergoing US government pre-release testing.
- Oct 28, 2026Carbon debuted first on the Artificial Analysis Intelligence Index v5.0 with a score of 59, one point ahead of Claude Opus 5.5.
- Nov 9, 2026Anthropic launched Claude Fable 5.2 and Mythos 5.2; Fable has since taken the lead on the general intelligence index where Carbon debuted first.
- Nov 10, 2026Google made Carbon available to developers, enterprises, scientists and consumers via the Gemini API in Google AI Studio and Gemini for business, rolling out to Google AI Ultra subscribers in the Gemini app, AI Mode in Search and Antigravity.
- Nov 10, 2026Introductory API pricing was set at $2 per million input tokens and $10 per million output tokens, the same as Argon, rising to $4 and $20 after the introductory period ends at the end of November.
- Nov 10, 2026Google said it is previewing a "swarm" feature on Antigravity that turns a single prompt into a coordinated team of agents, and is giving 10,000 scientists free access to Carbon for six months.
Key terms
- API
- A software interface that lets one program connect to and use the services of another program.
- tokens
- A basic unit of text that a language model processes, such as a word, part of a word, or symbol.
- zero-day vulnerabilities
- A software or hardware security flaw unknown to its vendor, leaving no patch available before attackers can exploit it.
Source: Wikipedia
Who’s saying what
- Official
- Google calls Carbon "our strongest model with state-of-the-art cybersecurity and long horizon capabilities," saying it helped first users uncover zero-day vulnerabilities and made advances in protein structure prediction.
- Analysts
- The Verge reports Google claims Carbon can compete with the best systems from Anthropic and OpenAI, but notes Google's cited benchmarks put it behind Fable 5.2 and that companies can cherry-pick benchmark results.
- Caution
- Quartz notes the announcement rests on Google's own reporting, blending outside leaderboard results with internal trial figures that come with no sample sizes, dates or methods.
Still unverified
The Verge says Google's benchmark results may be cherry-picked, and Quartz says Google's internal trial figures lack sample sizes, dates or methods; it is also unclear when or whether Carbon will reach lower-tier subscribers or free users, and Google has not published a country-by-country rollout schedule.