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

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.

Chapters:

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

https://80000hours.org/aiexplained

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

Direct Comparison: https://pbs.twimg.com/media/HGnNm5GWEAAJ1Ob?format=jpg&name=4096x4096

DeepSeek Paper: https://huggingface.co/deepseek-ai/DeepSeek-V4-Pro

SWE Bench Pro - benchmark of choice? https://x.com/ChowdhuryNeil/status/2047416077622395025

AA Omniscience: https://artificialanalysis.ai/evaluations/omniscience

Vending Bench: https://x.com/andonlabs/status/2047377260412649967

Opus 4.7 System Card: https://cdn.sanity.io/files/4zrzovbb/website/037f06850df7fbe871e206dad004c3db5fd50340.pdf

Sam Altman Drunk Phase: https://x.com/sama/with_replies

Noam Brown: https://x.com/polynoamial/status/2047387675762802998

DeepSeek Compute Crunch: https://www.bloomberg.com/news/articles/2026-04-24/deepseek-unveils-newest-flagship-a-year-after-ai-breakthrough?srnd=phx-ai

Spreadsheet Bench: https://x.com/nicochristie/status/2047476237464211721

Pattern Recognition: https://arcprize.org/leaderboard

Leader Interviews: 

Core Memory: https://www.youtube.com/watch?v=NCKQL0op30E

Knowledge Podcast: https://www.youtube.com/watch?v=6JoUcQ1qmAc
Big Tech Round 1: https://www.youtube.com/watch?v=J6vYvk7R190&t=1116s

Big Tech Round 2: https://www.youtube.com/watch?v=YnoQ8RJbALw&t=8s

Claude Code Limitations: https://x.com/TheAmolAvasare/status/2046724659039932830

ChatGPT 5.4 for Clinicians: https://openai.com/index/making-chatgpt-better-for-clinicians/

Image Arena: https://x.com/arena/status/2046670703311884548

VibeCode Bench: https://www.vals.ai/benchmarks/vibe-code

5.5-made Game +Seedance 2.0: https://rosemere-quest.pages.dev/