Changes from previous version
Large jump over Gemini 3.1 Pro on agentic coding benchmarks while keeping Flash-tier latency; default in the Gemini app, AI Mode in Search, Antigravity, and the Gemini API.
Release Summary
Gemini 3.5 Flash is Google's agentic and coding-focused Flash model: frontier-class scores on Terminal-Bench 2.1 (76.2%), GDPval-AA, and MCP Atlas at roughly 4x the output tokens per second of other frontier models.
Timeline
May 19, 2026
Gemini 3.5 Flash released
Google releases Gemini 3.5 Flash globally in the Gemini app, Search AI Mode, Antigravity, and the Gemini API.