https://openai.com/index/gpt-5-4-thinking-system-card/https://x.com/openai/status/2029620619743219811read

abstract-business-code-270348

GPT-5.4

Mar 5, 2026 Hacker News

https://openai.com/index/gpt-5-4-thinking-system-card/ https://x.com/OpenAI/status/2029620619743219811 Read more on Hacker News