AI Builders
Digest

Box CEO Aaron Levie highlighted the symbolic significance of the Cursor deal as the first mega success in AI's applied layer. It proves the value of deep domain focus, acting as a model router, balancing frontier models with custom training, and strong GTM execution. Replit CEO Amjad Masad celebrated their Databricks Partner of the Year win. Aaron Levie also discussed open weights models keeping pace with closed ones, impacting chip stacks, inference, sovereign AI, and margins.

OpenAI's Thibault Sottiaux announced the rollout of exciting Codex features across Europe. The team addressed high error rates with 'model at capacity' issues and reset rate limits across plans. Users can expect improved stability soon.

The Takeaway: Advanced simulations grounded in real human data can transform how organizations test ideas, predict behaviors, and understand complex social dynamics at scale. Joon Sung Park, founder and CEO of Simile (building on Stanford's Smallville and Generative Agents research), explains how his team evolved from academic experiments with LLM-powered agents to a commercial platform. Companies like CVS use it for market simulations, concept testing, and multi-agent scenarios like earnings calls. Key insight: LLMs trained on attitudinal data need behavioral grounding from real people via partners like Gallup to close the say-do gap. Simulations excel at both convergent (predictable patterns) and divergent (scenario exploration) questions, with TVD metrics under 0.15 indicating decision-ready accuracy. Park sees massive potential beyond Fortune 500s - in economics, policy, and even Nobel-level social science discoveries.

Claude Blog: Building intelligent apps for Apple platforms with Claude in the Foundation Models framework. Apple developers can now use a new Swift package to hand off complex tasks like multi-step reasoning and code generation to Claude from on-device models. It supports typed Swift values, web search, code execution, and seamless streaming back into SwiftUI views. Unlocks advanced features for journaling, study, and document apps across iOS 27, macOS 27 and more. Direct link: https://claude.com/blog/claude-for-foundation-models

Cursor Design lead Ryo Lu shared that designer @rikcreation coded most of Cursor Mobile using Cursor itself, proving titles don't limit building. Peter Yang published a tutorial on using Codex/Claude Code as a personal advisor with custom skills. Swyx shared resources on Cursor and WorkOS integrations.

Vercel CEO Guillermo Rauch announced 30-minute function invocations and 24-hour sandbox lifetimes, signaling major platform improvements.

Google VP Josh Woodward announced expansion of Google AI Futures Fund to Brazil with Monashees, launching the Gama Fund. Offers early DeepMind access, up to $2M co-investment, credits, and co-development at new IPT hub.

Madhu Guru reflected on rethinking human traits beyond intellect toward self-awareness and compassion. Zara Zhang advised focusing deeply on what you're good at rather than chasing trends. Nikunj Kothari noted vibes at Cursor Compile and the significance of being in the data or token path. Garry Tan shared thoughts on differentiation of self and military tech.