Companies running AI must decide which work to send to the frontier labs and which to run on open-weight models. Raffi Krikorian, Mozilla's Chief Technology Officer, explains open-weight AI for the enterprise: what open-weight and open-source models are, which work belongs on frontier models, and when running your own models pays off. The conversation covers cost, security, backup plans, token pricing, and lock-in. YOU'LL DISCOVER ✅ Why Raffi compares an open-weight model to a compiled binary: you can download and run it, but you cannot see what went into it, unlike a fully open-source model. ✅ Where to draw the line: frontier models for scientific research, open-weight models for everyday tasks at about 35 to 50 times lower cost. ✅ How to find your own line: record and log every prompt and response, so those traces show which work a cheaper model can handle. ✅ Why openness leads to more security, not less, with Signal as the example. ✅ Why Raffi expects the moat to shift from building models to using them: fine-tuning, deployment, and the tooling around the model. ✅ How to run open models today, from NeoCloud API providers to Ollama, vLLM and llamafile on a MacBook, Mac Studio or DGX Spark, and why RAM is king. ✅ Why Raffi tells CTOs not to switch providers today, but to start evaluating a backup plan for outages, cost spikes, and lowered token limits. ✅ Why today's token prices are subsidized ahead of the labs' IPOs: a $200 subscription that one Mozilla engineer measured at about $6,000 a month in tokens. ⏱️ TIMESTAMPS 0:00 Introduction 0:14 Open weight versus open source models 5:11 Rent the frontier, own everyday AI 12:21 Openness leads to more security, not less 14:45 The moat shifts from model to usage 18:28 Open models are getting easier to run 27:42 Start evaluating a model backup plan today 32:51 When enterprises should move to open models 38:51 Subsidized token prices will not last 43:13 IP rights and inspection at scale 47:00 Open-weight competition, China, and safety 51:08 Token price hikes and context lock-in CXOTalk streams live with audience questions. Join us live and ask the guests your own questions: https://www.cxotalk.com/subscribe Show notes, transcript, and summary: https://www.cxotalk.com/episode/mozilla-cto-open-source-and-open-weight-ai-rent-or-own Episode 933 | Recorded October 9, 2026 #CXOTalk #OpenWeightAI #OpenSourceAI #EnterpriseAI #AIStrategy #Mozilla #OpenModels #AICosts #CTO #AIInfrastructure