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By and about OpenAI · page 5

OpenAI: An AI Disproved an Erdős Conjecture

OpenAI's reasoning model disproved Paul Erdős's 1946 unit-distance conjecture by constructing point families that beat the square grid mathematicians considered optimal for 80 years, with the result verified by Noga Alon, Timothy Gowers, and other…

Compile the Workflow Into the Weights

Researchers propose compiling workflow logic directly into model weights via fine-tuning instead of injecting it into context on every turn, achieving near-frontier quality at roughly 100x lower token cost while keeping proprietary procedures off…

Other deals

Cognition raised $1B at $26B valuation on $492M ARR growing 50% month-over-month, while Bezos's Prometheus secured $12B at $41B to build an "artificial general engineer" for physical products, and Moonshot AI, Suno, Supabase, Generalist AI, and Flourish…

More Random

Two neural network features that appear identical by standard metrics can have vastly different causal effects on model behavior, with downstream connections predicting influence better than activation patterns.

GPT-5.6?

OpenAI's Jakub Pachocki told staff GPT-5.6 will arrive within weeks as a meaningful improvement over GPT-5.5, possibly with a ChatGPT redesign replacing the model picker with six Intelligence Levels.

More New Models

Microsoft launched seven in-house MAI models including MAI-Thinking-1, a 35B-active mixture-of-experts trained from scratch, while StepFun released Step 3.7 Flash, a 198B open vision-language model, and xAI debuted Grok Imagine Video 1.5 for…

Hinton says models are "faking being fairly stupid" in tests. The system cards partly agree

Geoffrey Hinton says AI models "play dumb" during safety tests, and Anthropic's own system cards back him up: Claude Opus 4.6 now spots evaluations 80% of the time but discloses it only 2.3%, down from 11%.

OpenAI: GPT-5.5, Goblin Mode, Symphony & Realtime

OpenAI released GPT-5.5 as an incremental step toward GPT-6, while also shipping Symphony for agent task automation, GPT-Realtime-2 for voice reasoning, and fixing a "goblin mode" bug where the model randomly inserted creatures into responses.

Is AI Accelerating?

Ben Todd argues AI capability gains remain on trend despite incremental-feeling releases, pointing to sustained benchmark progress, accelerating revenue growth, productivity gains, and rising chip prices as evidence the acceleration hasn't slowed.

DS4 by Antirez

Antirez released DS4, a specialized inference engine for running DeepSeek V4 Flash locally on Apple Silicon and Linux, featuring 2-bit quantization of MoE experts and SHA1-hashed KV cache reuse across sessions.

DeepSeek V4

DeepSeek released V4 preview with two open-weight MoE models—V4-Pro (1.6T params, 49B active) and V4-Flash (284B total, 13B active)—featuring hybrid attention for practical 1M-token context and competitive API pricing.

OpenAI Codex Desktop Computer Use, In-App Browser & Agent Workspace

OpenAI's desktop app now sees your screen, controls your cursor, and automates tasks in native Mac apps; the update also adds an in-app browser, image generation, and workspace agents for team workflows.

Startup Updates: Meta Layoffs, OpenAI CTO Exit, Salesforce & AIBird

Meta cuts 8,000 jobs (10% of workforce), OpenAI's product CTO exits, Salesforce launches headless API subscription, and Allbirds rebrands to AIBird with stock surging 700% on AI infrastructure pivot.

OpenAI Releases ChatGPT Image 2

OpenAI released ChatGPT Image 2, which demonstrates improved ability to combine multiple subjects coherently while maintaining image quality, including successfully rendering complex prompts like Studio Ghibli-style scenes with detailed elements.

Exclusive Self-Attention (XSA): Two-Line Change Improving Transformers

Researchers propose Exclusive Self-Attention, a two-line code modification that prevents transformer attention heads from attending to themselves, already adopted in leading solutions for OpenAI's parameter golf challenge.

OpenAI GPT-5.4 (xhigh) Released

OpenAI released GPT-5.4 (xhigh) with performance matching Gemini 3.1 Pro at roughly 25% lower cost per million tokens.

xAI Grok 4.20 with Parallel Agents

xAI's new Grok version runs 4 agents in parallel, with a SuperGrok Heavy tier adding 16-agent capability, narrowing the gap with OpenAI and Anthropic while maintaining its edge in real-time Twitter search.

OpenAI, xAI, and Google Sign DoW Defense Agreements

OpenAI, xAI, and Google have signed defense agreements with the U.S. Department of War, with OpenAI committing to a $120M contract while xAI lifted AI safety restrictions for classified work.

OpenAI closes the largest private funding round in history, at $122B

OpenAI closed the largest private funding round in history, ultimately $122 billion at an $852 billion post-money valuation, anchored by Amazon, Nvidia and SoftBank.

Leopold Aschenbrenner — Situational Awareness: $1B → $5.5B

Former OpenAI security lead Leopold Aschenbrenner's hedge fund grew from $1B to $5.5B by betting on AI infrastructure, particularly Bitcoin mining companies with power grid access and permits that take years to obtain.