The Singularity
Ledger

INTELLIGENCE

OpenAI is shipping faster than anyone can absorb, but the talent, users, and legal ground are shifting beneath it.

Wednesday, March 4, 2026

OpenAI's Post-Training Lead for GPT-5 Defects to Anthropic as 1.5 Million Users Reportedly Flee ChatGPT

Max Schwarzer, who led post-training for the GPT-5 series, announced he's joining Anthropic — the same week reports surfaced that over 1.5 million ChatGPT users canceled subscriptions over OpenAI's defense contracts. The twin departures, one in talent and one in trust, mark a new phase of competitive pressure.

Supreme Court Lets Stand Ruling That AI-Generated Art Cannot Be Copyrighted

The U.S. Supreme Court declined to hear a challenge to lower court rulings that AI-generated artwork lacks a human author and therefore cannot receive copyright protection — settling the question for now and sending shockwaves through the creative AI industry.

SUBSCRIBERSREAD MORE

GPT-5.3 Instant Rolls Out to All Users — and OpenAI Teases 5.4 Hours Later

OpenAI shipped GPT-5.3 Instant to all ChatGPT users on Tuesday with claims of fewer hallucinations and a less stilted tone, then immediately teased GPT-5.4 with a one-line post: "sooner than you Think." The release cadence is now measured in weeks, not months.

SUBSCRIBERSREAD MORE

Get The Singularity Ledger

Daily AI news in your inbox. Free, no spam.

Questions? hello@thesingularityledger.com

Get this briefing every morningFree daily AI

The Singularity
Ledger

OpenAI's Post-Training Lead for GPT-5 Defects to Anthropic as 1.5 Million Users Reportedly Flee ChatGPT

Supreme Court Lets Stand Ruling That AI-Generated Art Cannot Be Copyrighted

GPT-5.3 Instant Rolls Out to All Users — and OpenAI Teases 5.4 Hours Later

Gemini Breaks: Users Report System Prompt Leaks and Personal Information Exposure

X Will Suspend Monetization for Undisclosed AI-Generated War Videos

Stanford Study: All Six Major AI Companies Train on Your Chat Data by Default

Cursor Ships MCP Apps: AI Agents Can Now Render Interactive UIs

Google DeepMind Launches Gemini 3.1 Flash-Lite, Its Cheapest Model Yet

Builder Replicates Palantir-Style Global Intelligence Dashboard with AI

Grok Finds $1,400 in Missed Tax Deductions for X User