Gemini 4 Carbon arrives on Vercel’s AI Gateway at 50% off
Gemini 4 Carbon from Google is now available on Vercel’s AI Gateway, with access offered at 50% off through November 30, 2026. The model is designed for complex software engineering, sustained agentic work, and cybersecurity defense.
- Gemini 4 Carbon is now available on Vercel AI Gateway.
- Access is 50% off through November 30, 2026.
- The model offers a 1M-token context window.
- It targets software engineering, agentic work, and cybersecurity defense.
- The model name is google/gemini-4-carbon.
A model aimed at long, complex workloads
Gemini 4 Carbon has a 1M-token context window, allowing it to work with large codebases and long inputs. According to the information published by Vercel, the model is intended to carry demanding engineering tasks through multiple stages, with improvements in coding, full-stack web development, and scientific reasoning.
Its cybersecurity capabilities cover finding vulnerabilities, validating their risk, and developing patches. Google also reports more reliable execution of multi-step plans, fewer unsupported claims, and better collaboration when requirements are ambiguous. These capabilities are intended to help agents follow through while respecting project constraints.
How developers can use Gemini 4 Carbon
The model name for AI Gateway requests is google/gemini-4-carbon. Vercel’s example uses the AI SDK and the streamText function to stream a response from the model for a TypeScript task involving safe JSON parsing and a fallback.
Developers can also use Gemini 4 Carbon in Claude Code, Codex, Cursor, and other tools. Vercel says users should install the latest Vercel CLI, run npx vercel ai-gateway setup, and then select google/gemini-4-carbon in the agent. The company also directs users to its coding agents guide and model playground.
What AI Gateway adds
AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. Its features include custom reporting, Zero Data Retention support, budgets for API keys, and routing rules.
Vercel says AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including requests made through Bring Your Own Key, or BYOK. The Gemini 4 Carbon listing gives developers another model option within a service that combines model access with usage controls and routing features.
Vercel: Gemini 4 Carbon now available on AI Gateway
