The Two-Tier AI Trap: How OpenAI and Anthropic Built a Reasoning Glass Ceiling
The AI labs most associated with pushing reasoning AI forward are quietly walling it off from most users. OpenAI retired four public models from ChatGPT in a single day this February. Anthropic capped how deeply Claude Opus 4.6 reasons by default around the same time. The companies say it is efficiency. The trajectory says something else.
type0.ai independently reviewed the evidence. Outside analysts documented the drop across 6,852 real-world usage sessions; we confirmed the methodology and the results track: measured reasoning depth on Claude Opus 4.6 fell roughly 67 percent by late February. The pattern is documented.
The Information first flagged the broader strategic direction — both labs are now funneling their deepest capabilities behind enterprise contracts rather than shipping them to the public. The revenue mix makes the business case concrete: Anthropic generates roughly 80 percent of its revenue from business customers, a base that is far more predictable than OpenAI's consumer-heavy model. JPMorgan Chase and other major banks now get early access to Anthropic's Mythos frontier model through Project Glasswing, keeping the model's full capabilities out of most users' hands. OpenAI is racing to lock in similar exclusive deals, abandoning consumer products like Sora to redirect compute toward business accounts.
This is not the death of the reasoning model. GPT-5.4 Thinking remains OpenAI's flagship publicly available model. The machines still think; they just do it less often for most people, and only at full depth for those paying enough to join the club.
What changed is the roadmap. The model release cycle is now subordinate to the enterprise sales cycle. The companies most synonymous with pushing AI toward human-level reasoning are managing that reasoning for contracts, not for the public. The developer who built a workflow around consistent Opus 4.6 output woke up to find it shallower. The beneficiary is the bank that gets Mythos on exclusive terms.
Watch the enterprise deals. Both companies are betting that business customers will pay for access to reasoning depth they will not offer the public. If those contracts do not materialize, the pivot was theater. If they do, the rest of us are using a different product.