Gemini 4 Carbon Is Priced to Disappear
Two dollars per million input tokens, until the introductory window closes and the price doubles.
Google moved Gemini 4 Carbon to general availability on 10 November 2026, having previously restricted it to cyber-defence partners. Pricing is $2 per million input tokens and $10 per million output, roughly a fifth of GPT-6 Astra. One detail that matters for anyone building on it: those rates are introductory and expire on 30 November, after which the price doubles. Google also previewed /swarm multi-agent collaboration in Antigravity, and reported that AlphaProof Code used an agent cluster to generate about 6.5 million lines of Lean proofs in four weeks, completing key security verification work on the Signal protocol.