Gemini 3.6 Flash & 3.5 Flash-Lite: Developer guide

Gemini 3.6 Flash ( gemini-3.6-flash ) and Gemini 3.5 Flash-Lite ( gemini-3.5-flash-lite ) are generally available (GA) and ready for production use. Gemini 3.6 Flash : Stronger performance on complex agentic and multimodal tasks while reducing token usage, at a lower price point than 3.5 Flash. Gemini 3.5 Flash-Lite : The fastest, lowest-cost model in the 3.5 family. Outperforms prior Flash-Lite generations for high-throughput execution. This guide explains what's new in each model, what API changes affect your code, and how to migrate. Tip : You can automate this migration with a coding agent that supports skills (like Antigravity). Run /gemini-interactions-api migrate my app to Gemini 3.6 Flash New models Model Model ID Default thinking level Pricing Description Gemini 3.6 Flash gemini-3.6-flash medium $1.50/1M input tokens and $7.50/1M output tokens Balances speed with intelligence for agentic and multimodal tasks. Gemini 3.5 Flash-Lite gemini-3.5-flash-lite minimal $0.30/1M input tokens and $2.50/1M output tokens The fastest, lowest-cost 3.5 model for high-throughput execution. Both models support the 1M token context window, 64k max output tokens, thinking, and the full suite of built-in tools including Computer Use . For complete specs, see the model pages: Gemini 3.6 Flash model page Gemini 3.5 Flash-Lite model page For detailed pricing, see the pricing page . Quickstart from google import genai client = genai . Client () interaction = client . interactions . create ( model = " gemini-3.6-flash " , input = " Write a three.js script that renders an interactive 3D robot. " ) print ( interaction . output_text ) What's new in Gemini 3.6 Flash Token and turn reduction: Completes multi-step workflows with fewer reasoning steps, conversational turns, and tool calls than Gemini 3.5. It also reduces execution loop spiraling. Improved code generation: Produces higher quality production-ready code with fewer unwanted edits and fewer debugging loops. Better instruction f