🤖 AI Agents Weekly: Kimi K3, DeepSeek-V4-Flash API, GPT-5.6 Price Cuts, Inkling-Small, YC's QM Harness, Gemini Robotics 2, Codex Security CLI, and More
Kimi K3, DeepSeek-V4-Flash API, GPT-5.6 Price Cuts, Inkling-Small, YC's QM Harness, Gemini Robotics 2, Codex Security CLI, and More
In today's issue:
Moonshot open-sources Kimi K3
DeepSeek ships V4-Flash agent API
OpenAI cuts GPT-5.6 prices 80%
Thinking Machines drops Inkling-Small
Google launches Gemini Robotics 2
OpenAI open-sources Codex Security CLI
YC open-sources its QM agent harness
Microsoft Foundry adds tool search
Moonshot releases agent RL infra
Nous adds wake word to Hermes
Cursor lands on iPad
ResearchArena probes AI R&D sabotage
HANDBOOK.md tests long policy files
Study exposes coding agent harness effects
SlopCodeBench stress-tests Opus 5
And all the top AI dev news, papers, and tools.
Top Stories
Moonshot Open-Sources Kimi K3
Moonshot AI released Kimi K3, a 2.8T-parameter open-weight MoE model with native vision that lands closer to the closed frontier than any prior open release.
Architecture: Combines Kimi Delta Attention, Attention Residuals, and Stable LatentMoE, activating 16 of 896 routed experts and 104B parameters per token.
Scale and context: Ships a 1-million-token context window and roughly 2.5x better scaling efficiency than Kimi K2.
Agentic post-training: Uses million-token agentic RL with persistent rollout and sandbox state, plus multiple reasoning-effort levels for long-horizon execution.
Where it lands: Frontier-level on long-horizon coding, agentic, reasoning, and vision tasks, trailing only Claude Fable 5 and GPT-5.6 Sol among models evaluated.