Source: OpenAI rolled back ChatGPT’s model router, which sent some queries to reasoning models, for Free and $5/month Go tiers, as it was costly and hurt DAUs (Maxwell Zeff/Wired)

Maxwell Zeff / Wired:
Source: OpenAI rolled back ChatGPT's model router, which sent some queries to reasoning models, for Free and $5/month Go tiers, as it was costly and hurt DAUs  —  As OpenAI scrambles to improve ChatGPT, it's ditching a feature in its free tier that contributed to last summer's user revolt.