Day 0 support: Gemini 3.8 Flash
LiteLLM now supports gemini-3.8-flash on day 0, on both Google AI Studio (gemini/) and Vertex AI (vertex_ai/). Google calls its newest Flash model its primary general-purpose model, with gains over 3.7 Flash on long-horizon software engineering, agentic tasks, and multi-step reasoning, and on DeepSWE v1.1 it outperforms most larger frontier models at a fraction of the cost.