OpenAI just set a new floor for frontier AI access. ChatGPT Pro now runs $100 per month. The headline feature is GPT-5.4 Pro, an exclusive reasoning model with 128K context windows that isn't available on cheaper plans. Agent mode and deep research come baked in. These are gnarly system programming tasks, the kind of work that separates capable coding agents from genuinely useful tools. But GPT-5.4 can be slower on simpler tasks, so some developers are keeping subscriptions to multiple platforms anyway, a strategy that platforms like OpenRouter specialize in facilitating.

This is also a direct shot at AI wrapper startups. OpenAI is integrating agent execution with deep reasoning into one platform. Third-party tools that built their value on these specific features now have a much smaller moat. If you were selling "ChatGPT but with agents" or "ChatGPT but with research," your differentiation just got Sherlock'd.

The bigger question is who gets left behind. $100/month puts the most capable models further out of reach for individual developers and small teams. Frontier AI access is becoming a subscription game with escalating costs, and the people who need these tools most might not be the ones who can afford them.