Gemini 3.5

Google's flagship model combining frontier intelligence with agentic action capabilities

Context window

Input / 1M tokens

TBA

Output / 1M tokens

TBA

Provider

Google DeepMind

Pricing not yet fully published at launch. Available via Google AI Studio and Vertex AI.

Gemini 3.5 was announced at Google I/O 2026 as the new top-tier model in Google's lineup, replacing Gemini 2.0 Ultra in Google One AI Premium. The defining characteristic is action: Gemini 3.5 is built for agentic workflows with first-class support for tool use, web browsing, code execution, and multi-step task orchestration. It powers Google Antigravity CLI, the new terminal-native AI coding tool, and underpins the agentic Workspace features launched at I/O 2026. It maintains the 1M token context window from Gemini 2.5 Pro.

Strengths

✓Action-first architecture for agentic and multi-step workflows
✓1M token context window - largest in class
✓Powers Google Antigravity CLI for terminal-native coding
✓Native Workspace integration with autonomous task execution
✓Companion Gemini Omni handles anything-to-anything multimodal generation

Best for developers who...

Agentic workflows requiring multi-step tool useLarge codebase comprehension and editingGoogle Workspace automationLong document and multimodal analysis