The Daily Index — Tuesday, March 31, 2026 · TLDR Index

Across today’s newsletters

Today’s Index

TLDR

THE SUDDEN FALL OF OPENAI'S MOST HYPED PRODUCT SINCE CHATGPT

Sora was hyped as AI's next consumer-friendly frontier, and even Disney signed onto the vision. OpenAI then suddenly killed the project, with many Disney executives learning about the decision less than an hour before it was announced. OpenAI needed to free up more computing resources, and Sora was using far too much. The product wasn't profitable, and every user drew down a finite resource. CEO Sam Altman says the move was a difficult but necessary sacrifice toward the company's larger goals.

links.tldrnewsletter.com · 14 min

TLDR AI

INTRODUCING CODEX PLUGIN FOR CLAUDE CODE

The Codex plugin for Claude Code gives users a simple way to pull Codex into their Claude Code workflow. It is useful for normal Codex reviews, a more adversarial review, and handing work off to Codex when a second pass from a different agent is required. The plugin delegates through the local Codex CLI and Codex app server, so it uses the system's existing local auth, configuration, environment, and MCP setup.

links.tldrnewsletter.com · 3 min

TLDR Dev

WHAT WE LEARNED BUILDING 200+ API INTEGRATIONS WITH OPENCODE

Nango used OpenCode to develop an autonomous agent that generates hundreds of API integrations in minutes for a fraction of the traditional cost. While highly efficient, the project showed that these agents require strict guardrails and constant verification to actually be reliable and fully usable.

nango.dev · 11 min

TLDR Product

THE 12TH OF NEVER

Leadership breaks down when leaders aren't available to decide, engage, and follow through. Availability builds trust, speed, and ambition, while its absence quietly weakens teams.

runthebusiness.substack.com · 6 min

TLDR Design

ADOBE ILLUSTRATOR NOW LETS YOU ROTATE 2D VECTORS IN 3D SPACE

Adobe Turntable is now fully available in Adobe Illustrator, allowing creators to instantly generate up to 74 editable multi-angle views—including full rotation and tilt—from a single vector illustration while preserving its 2D style. First previewed as Project Turntable at Adobe MAX 2024, the feature dramatically reduces work that once took hours to seconds, enabling animators and game designers to quickly produce character turnarounds, concept art, and production-ready assets.

9to5mac.com · 1 min

TLDR

APPLE PIVOTS ITS AI STRATEGY TO APP STORE, SEARCH-LIKE PLATFORM APPROACH

Apple is recommitting to its core business model of selling hardware and services. It knows its homegrown AI technology lags behind competitors, so it is focusing on its core strengths. Historically, Apple's software has been about driving product sales rather than generating revenue in their own right. It plans to embed just enough AI in its OSes to keep users from defecting, while opening Siri and Apple Intelligence to third-party services. This approach leverages its hardware, makes its products more customizable, and keeps the company in control of its ecosystem.

links.tldrnewsletter.com · 13 min

TLDR

INSIDE THE STEALTHY STARTUP THAT PITCHED BRAINLESS HUMAN CLONES

A Californian startup called R3 has raised funds to create non-sentient monkey 'organ sacks' as an alternative to animal testing. The startup's founder reportedly secretly pitched a vision where the startup creates 'brainless clones' to serve as backups for human bodies. This could be in the form of a baby version of a person with enough brain structure to be alive in case they ever need a new kidney or liver, or it may even be possible to one day transplant a brain into a younger clone to gain a second lifespan. The company has denied that it ever made the pitch, saying that any allegations of intent or conspiracy to create human clones or humans with brain damage are categorically false.

technologyreview.com · 29 min

TLDR

VULNERABILITY RESEARCH IS COOKED

Coding agents will soon drastically alter both the practice and the economics of exploit development. A substantial amount of the high-impact vulnerability research will just be pointing an agent at a source three and telling it to find zero days. This will profoundly alter information security and the Internet itself.

sockpuppet.org · 16 min

TLDR

ENGINEERING FOR AGENTS THAT NEVER SLEEP

Most of the signals that trigger engineering work are already machine-readable. The current bottleneck is where a human reads that signal, interprets it, and then types a prompt telling the agent what the signal already said. Give agents comprehensive unit tests so they can verify their own output, good documentation to discover context, reproducible dev environments to run code, and rich system accounting. This scaffolding will enable agents that can close incidents around the clock.

nader.substack.com · 2 min