Gemma 4 26B (MoE) and 31B (Dense) from Google are now available on .Vercel AI Gateway Built on the same architecture as Gemini 3, both open models support function-calling, agentic workflows, structured JSON output, and system instructions. Both support up to 256K context, 140+ languages, and native vision. To use Gemma 4, set model to or in the .google/gemma-4-31b-itgoogle/gemma-4-26b-a4b-itAI SDK 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.

It includes built-in , , support, and intelligent provider routing with automatic retries.custom reportingobservabilityBring Your Own Key Learn more about , view the or try it in our .AI GatewayAI Gateway model leaderboardmodel playground Read more 26B (MoE): Activates only 3.8B of its 26B total parameters during inference, optimized for lower latency and faster tokens-per-second. 31B (Dense): All parameters are active during inference, targeting higher output quality. Better suited as a foundation for fine-tuning.