Shane and Abhi are live from London this week, and the big one is Kimi K3 — a 2.8 trillion parameter open frontier model with a million-token context window that lands right next to Fable 5 on the benchmarks, takes the number one spot on the front-end Code Arena, and reportedly doubles Fable's performance on legal tasks. Then demand got so heavy Moonshot had to pause new subscriptions.

Also this week: Anthropic scrambles to keep Fable in Max and Team plans, an Opus 5 leak, and the distillation debate — if you paid for the output, whose data is it? Plus Anthropic's $1.5B copyright settlement, Grok Build going open source, Thinking Machines' Inkling, three new Gemini models that land with a thud, and Ramp shipping Ramp Router — which prompts Shane's bold call that Ramp is about to become an AI company with a fintech arm, not the other way around. Then DoorDash ships a CLI for your agent, and everyone argues about what a "factory engineer" actually is.

AI Agents Hour is a weekly livestream by Mastra CPO Shane Thomas and CTO Abhi Aiyer. Mondays 12PM Pacific.

📚 READ MORE
Kimi K3 launch: https://x.com/Kimi_Moonshot/status/2077830229968683203
Kimi K3 on Artificial Analysis: https://x.com/ArtificialAnlys/status/2077832874183860404
Number one on the front-end arena: https://x.com/arena/status/2077824029126504525
Kimi K3 on legal tasks: https://x.com/nrehiew_/status/2077782070785634767
Open weights coming (Yulun Du): https://x.com/yulun_du/status/2077831915999228192
Pausing new subscriptions: https://x.com/kimi_moonshot/status/2078855608565207130
Fable stays in Max & Team plans: https://x.com/claudeai/status/2078302415804379218
Opus 5 leak: https://x.com/vral/status/2079267940021477864
The distillation debate: https://x.com/pankajkumar_dev/status/2079288624928158160
Grok Build goes open source: https://x.com/spacexai/status/2077494535387828644
Thinking Machines' Inkling: https://x.com/thinkymachines/status/2077454609551921208
Three new Gemini models: https://x.com/Google/status/2079589747366724030
Ramp Router: https://x.com/andyfang/status/2077516962515599799
DoorDash CLI: https://x.com/denisewu/status/2077984660211269870
Build your own CLI from network requests (Dax): https://x.com/thdxr/status/2078727284865827140
OpenShip: https://x.com/openshipio/status/2078143909125923137
AI SDK for Python: https://x.com/1st1/status/2078393737407848683
What the devil is a factory engineer? https://www.youtube.com/watch?v=qd6ltKUcp9U
Yardarm, an Electron app for Mastra Code: https://github.com/JJJ-Mo3/yardarm

📚 MASTRA RESOURCES
Mastra: https://mastra.ai
Mastra on X: https://x.com/mastra_ai
Mastra Discord: https://mastra.ai/community/discord
Mastra GitHub: https://github.com/mastra-ai
Learn Mastra: https://mastra.ai/learn
Principles of Building AI Agents (Book): https://mastra.ai/books/principles-of-building-ai-agents
Patterns for Building AI Agents (New Book): https://mastra.ai/books/patterns-of-building-ai-agents

WHAT IS MASTRA?
Mastra is an open-source TypeScript framework designed for building and shipping AI-powered applications and agents with minimal friction. It supports the full lifecycle of agent development—from prototype to production. You can integrate it with frontend and backend stacks (e.g., React, Next.js, Node) or run agents as standalone services. If you're a JavaScript or TypeScript developer looking to build an agentic or AI-powered product without starting from first principles, Mastra provides the scaffolding, tools, and integrations to accelerate that process.

⏱️ CHAPTERS
00:00 Cold open
00:27 Welcome — live from London
01:08 Kimi K3: 2.8T parameters, open frontier intelligence
02:57 Number one on the front-end arena
04:25 Kimi K3 doubles Fable on legal tasks
05:07 Demand breaks capacity: subscriptions paused
05:53 What is Alibaba Cloud, and why speed matters
07:13 Fable stays in Max & Team plans
07:56 The Opus 5 leak
08:32 The distillation debate: whose data is it?
12:54 Anthropic's $1.5B copyright settlement
13:34 Be a guest on the show
13:48 Grok Build goes open source
14:37 Thinking Machines' Inkling & the fine-tuning future
16:09 Three new Gemini models (and a sick dark horse)
18:44 Is Ramp an AI company? Ramp Router & the pivot call
21:53 Will our agents order us pizza? DoorDash CLI
23:07 Build your own CLI from network requests
23:54 Quick hits: OpenShip & AI SDK for Python
24:21 What the devil is a factory engineer?
26:31 GitHub star party: Yardarm
27:02 Outro