AI Builders
Digest

Peter Yang's F-Zero test succeeded for the first time: GPT-5.5 + Codex was the only combo that built a working game. Dan Shipper noted that GPT-5.5 just executes plans instead of hesitating. Box CEO Aaron Levie shared enterprise evals showing a 10-point accuracy jump across industries (financial 83% vs 64%, healthcare 78% vs 61%).

From an Unsupervised Learning x Latent Space crossover: Anthropic and OpenAI are each at roughly $2B ARR from coding products alone. Swyx notes that 2025 was the year of coding agents, and 2026 is when they break containment to do everything else. The market is still in capability exploration, rewarding those who are crazy and creative.

Aaron Levie argues AI won't automatically reduce work because work isn't static. AI lowers exploration cost, so people start doing far more tasks that previously went undone. Small things quickly consume 3 hours because agents make it easy to start, but the rest still requires human effort.

Anthropic Engineering investigated user reports of degraded Claude Code quality and found three separate issues: default reasoning effort changed from high to medium (reducing intelligence), a caching bug that cleared thinking history every turn (causing forgetfulness), and a system prompt change to reduce verbosity that hurt coding quality. All resolved by April 20, with usage limits reset for all subscribers.

Amjad Masad criticized US politicians scaremongering about 'Chinese distillation,' pointing out that Chinese scientists are openly sharing real AI breakthroughs that benefit everyone, including US labs. He also noted the release of DeepSeek v4.

Peter Yang's F-Zero test (having models build a game) succeeded for the first time with GPT-5.5 + Codex, even creating multiple racing bots.

Nikunj Kothari analyzes the M&A surge: widening seed-to-Series A gap, 2021 zombiecorns coming home, big token factories gobbling talent, bearish public markets. He warns: 'There is a lot of founders but very few entrepreneurs. Don't become a founder for the sake of being one - do it because you literally can't do anything else.'

Garry Tan is migrating OpenClaw cron jobs and subagents to GBrain Minions, with stability improvements, and created new evals showing the power of graph + vector search on knowledge wikis.

Nikunj Kothari shares his undefeated stack: Claude Opus for planning/design, Codex for engineering, Conductor for orchestration, Railway for deployment. He says it's never been easier and more fun to build.

Sam Altman announced a successful Codex rollout across a whole company with NVIDIA, calling it awesome, and invited other companies to try.

Anthropic launched memory for Claude Managed Agents in public beta. Agents learn across sessions, memories stored as files, exportable via API, with audit logs. Netflix and Rakuten are using it; Rakuten cut first-pass errors by 97%.

Claude expanded connectors to include AllTrails, Instacart, Audible, TripAdvisor, Uber, and more. Claude dynamically suggests relevant apps in conversations, ad-free, no data training, and users can disconnect anytime.

Peter Steinberger praised the GitHub team and shared a favorite security advisory.

Amanda Askell reflected on the odd feeling of living through one of the most critical periods in human history and feeling all the weight of it from the inside.

Cat Wu discussed with Lenny San how the product management role is shifting in the AI era and how Claude Code maintains product velocity.

Aditya Agarwal reflected on why 95% of AI value is concentrated within a 4-mile radius in SF, citing curiosity, humility, and supportive culture, illustrated by design talks from legends and a mind-bending demo of every pixel being generated.

Matt Turck invites NYC AI builders to Data Driven NYC, featuring Ramp's agentic innovation demo and Estuary's unified data infra for AI.

Swyx says the Codex app is unrecognizable and should have been Atlas all along. He notes the most underrated part of the launch isn't GPT-5.5. He also invited Anthropic to the 'most AI-pilled country per capita' (Singapore).