All Gemma 4 models bring significant improvements in multi-step reasoning and math tasks, according to Google. For agentic workflows, they natively support function calling, structured JSON output, and system instructions, letting autonomous agents tap into various tools and APIs.

Four model sizes cover everything from edge devices to workstations

Gemma 4 comes in four sizes: Effective 2B (E2B), Effective 4B (E4B), a 26B Mixture-of-Experts (MoE) model, and a 31B Dense model. All four go beyond simple chat and handle complex logic and agentic workflows.

E2B

E4B