Skip to main content
AI Choice Engine

Google

Gemini 4 Carbon

Gemini 4 Carbon is a Google model with Not verified context, Not verified in / Not verified out per million tokens, last verified November 3, 2026. Open weights: no. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.

Google's cyber-focused Gemini 4 frontier model for long-horizon engineering and security work, in restricted phased access.

Recorded profile verification November 3, 2026Individual provider fields may changeAccess: restricted — Phased Fairwind Program access for trusted partners first; general developer availability announced as upcoming.

AI model specification details
SpecificationGemini 4 Carbon
ProviderGoogle
TierFrontier
Context windowNot verifiedUnverified
Max outputNot verifiedUnverified
Input / 1M tokensNot verifiedUnverified
Output / 1M tokensNot verifiedUnverified
WeightsClosed
ParametersNot verifiedUnverified
Reasoning levelsNot verifiedUnverified
Modalities
ReleasedOctober 28, 2026

Pricing tiers: Google announced launch pricing of $2 input/$10 output per million tokens (cached input 95% off), rising to $4/$20 after the introductory period. Carbon did not appear in the Gemini API pricing or model documents checked on November 3, 2026, so no current self-serve API tariff is published here.

Best for

  • Security research with approved access
  • Long-horizon coding agents

Watch out

Access is restricted to phased trusted-partner cohorts; it is not a self-serve API model yet. Context, output caps, and effort controls are unverified. Google claims multimodal understanding without enumerating supported input types, so no concrete modality list is published here. Publisher cyber benchmark figures are internal results, not independent public-board observations.

History

Gemini 4 Carbon timeline

Release and status events for this model that passed two-source verification — dated, sourced, and linked.

  • Gemini 4 CarbonLimited previewOctober 28, 2026

    Google announced Gemini 4 Carbon for phased Fairwind trusted-partner access, with general developer availability to follow and announced introductory launch pricing of $2/$10 per million tokens.

    Google Gemini 4 Carbon announcement, dated October 28

Source receipts

Catalog figures for this model were checked against the following sources.

Common questions

Gemini 4 Carbon

Answered from the verified figures on this page rather than general guidance.

What is Gemini 4 Carbon best for?
Gemini 4 Carbon is a frontier tier from Google. It suits security research with approved access, long-horizon coding agents. Access is restricted to phased trusted-partner cohorts; it is not a self-serve API model yet. Context, output caps, and effort controls are unverified. Google claims multimodal understanding without enumerating supported input types, so no concrete modality list is published here. Publisher cyber benchmark figures are internal results, not independent public-board observations.
Model comparison catalogBenchmark library