First Opus-class model with 1M token context window (beta), adaptive thinking with effort levels, and context compaction for sustained agentic tasks. Agent teams feature enables parallel subtask execution.

Achieves Gemini 3 Pro-class reasoning at Flash-tier latency and cost. Outperforms 2.5 Pro while being 3x faster at less than 1/4 the cost of 3 Pro. 1M token context, 65K output tokens.