GPT 5.5 Arrives, DeepSeek V4 Drops, and the Compute War Intensifies

Summary

GPT 5.5 full analysis, plus DeepSeek V4 paper highlights, comparisons with Mythos, a vibe-coded game w/ GPT Image 2, and 50 data-points you wouldn’t get from just reading the headlines. https://80000hours.org/aiexplained Check out my fast-growing (!) app, free to use, and code INSIDER15 for paid tiers: https://lmcouncil.ai AI Insiders ($9!): https://www.patreon.com/AIExplained Chapters: 00:00 - Introduction 01:11 - GPT 5.5 Comparison 06:04 - Mythos Marketing 11:50 - Recursive Self-Improvement? 14:11 - Deepseek V4 18:03 - VibeCode Experiment Extravaganza 21:44 - The Scarce Compute Era OpenAI Benchmarks: https://openai.com/index/introducing-gpt-5-5/ 5.5 System Card: https://deploymentsafety.openai.com/gpt-5-5/gpt-5-5.pdf…