According to The Rundown AI, OpenAI introduced a $100 per month ChatGPT tier that offers 5x more Codex usage than the Plus plan and is positioned for longer, high‑effort Codex sessions, targeting power users and developers who need sustained coding assistance. As reported by The Rundown AI, the timing follows heightened attention on Anthropic’s recent rate limits, signaling competitive positioning on throughput and reliability for coding workloads. For businesses, this tier could lower queue times, expand code generation bursts, and improve complex refactoring tasks, according to The Rundown AI. The move suggests OpenAI is segmenting usage by intensity, enabling teams to budget for predictable capacity and prioritize long‑running code assistance sessions, as noted by The Rundown AI.

According to Sam Altman (@sama), ChatGPT has introduced new user-selectable modes for GPT-5: 'Auto', 'Fast', and 'Thinking'. This feature enables users to tailor their AI experience based on speed and depth of reasoning, with 'Auto' as the default and additional granular control for advanced users. The update also raises rate limits to 3,000 messages per week for the 'Thinking' mode, with extra capacity available, significantly enhancing productivity and scalability for enterprise and power users. These enhancements present new business opportunities for AI-driven workflows, allowing organizations to optimize response times and computational resources for varied use cases (source: Sam Altman, Twitter, August 13, 2025).