Gemma 4: Google's Open-Weights Models Deliver a 13x Jump in Agentic Performance

Google released Gemma 4 on April 2, 2026 — four open-weights models (2B to 31B parameters) under Apache 2.0, with native function calling, 256K context, multimodal input (text/image/audio/video), and a τ2-bench agentic score of 86.4% vs. Gemma 3's 6.6%. The 26B MoE variant runs with only 3.8B active parameters, making production-grade agentic AI viable on consumer hardware.