Moonshot AI released Kimi K2.6 on April 20, 2026, a multimodal agentic model with 1T total parameters and 32B active parameters. The model is designed for 12-hour autonomous coding sessions, supports swarms of up to 300 coordinated sub-agents with up to 4,000 steps per session, and carries a 262K-token context window. Four variants ship: K2.6 Instant, K2.6 Thinking, K2.6 Agent, and K2.6 Agent Swarm. Weights are available on Hugging Face under a Modified MIT License; API access is via platform.moonshot.ai. K2.6 scores 80.2% on SWE-Bench Verified and 58.6% on SWE-Bench Pro, topping open-weight coding model leaderboards at the time of release.