# 🤖 AI Agents Weekly: Kimi K3, Thinking Machines Inkling, Agentic Misalignment, Perplexity SPACE, Sunday ACT-2, GPT-Red, and More > Source: > Published: 2026-07-18 15:00:48+00:00 # 🤖 AI Agents Weekly: Kimi K3, Thinking Machines Inkling, Agentic Misalignment, Perplexity SPACE, Sunday ACT-2, GPT-Red, and More ### Kimi K3, Thinking Machines Inkling, Agentic Misalignment, Perplexity SPACE, Sunday ACT-2, GPT-Red, and More In today's issue: Moonshot open-sources Kimi K3 Thinking Machines ships Inkling weights Anthropic finds new agent misalignment Perplexity opens SPACE agent runtime Sunday Robotics unveils ACT-2 OpenAI launches GPT-Red red teamer Meituan open-sources LongCat-2.0 schema harness saturates ARC-AGI-3 And all the top AI dev news, papers, and tools. ## Top Stories ### Moonshot Open-Sources Kimi K3 Moonshot AI introduced Kimi K3, billed as the first open 3-trillion-class model, with weights due July 27. **Scale and architecture:** A 2.8T-parameter Stable LatentMoE activating 16 of 896 experts, with a 1M-token context window and native vision in a single model.**New attention design:** Kimi Delta Attention delivers up to 6.3x faster decoding in million-token contexts, and Attention Residuals add roughly 25% higher training efficiency at under 2% extra compute.**Agentic strength:** Leads Terminal-Bench 2.1 and scores 67.3 on DeepSWE, with demos of autonomous kernel optimization, compiler development, and vision-in-the-loop coding.**Availability:** Live via Kimi.com, Kimi Code, and API from about 0.30 dollars to 15 dollars per million tokens, with open weights following on July 27.