REASONING-MODELS

30 days · UTC

LIVE_DATA_STREAM // APRIL_14_2026

Synchronizing with global intelligence nodes...

DENSITY_RATIO: MAX

OPENAI ROLLS OUT GPT-5.4 MINI IN CHATGPT AND SUNSETS LEGACY DEEP RESEARCH

OpenAI added GPT-5.4 mini to ChatGPT as a fallback for reasoning and is removing the legacy deep research mode. OpenAI is rolling out GPT-5.4 mini in...

OPENAI

MAR_21 // 07:17

OpenAI rolls out GPT-5.4 mini fallback, upgrades GPT-5.4 Thinking, and retires GPT‑5.1 in ChatGPT

OpenAI is changing model routing in ChatGPT with GPT-5.4 Thinking upgrades and a new GPT-5.4 mini fallback, while retiring GPT‑5.1. OpenAI says GPT‑5...