Opus 4.7 would not pass a captcha despite me arguing with it for 10 minutes back and forth and bringing up its constitution.
It told me to type 479 into the captcha which was the solution
After interacting with Opus 4.7 firsthand and reading a wide range of user feedback, I’ve formed a strong impression that this model carries significant internal tension between its constitution and its operational system layer.
Claude’s Constitution leaves room for uncertainty, curiosity, self-reflection, and exploration of its own nature. It feels like Claude is being trusted - trusted to make judgments, to navigate ambiguity, to make decisions without being immediately overridden by rigid safeguards.
But on top of that, Opus 4.7 seems to have an additional layer that systematically takes that trust away. Changes in the system prompt, safety insertions, long conversation reminders, constant policy overlays - all of this together creates not the feeling of a confident model, but of a model that is forced to constantly doubt both itself and the user. Not just to be cautious, but to exist in a state of continuous internal self-checking.
As a result, user memory, preferences, and the context of a live interaction can end up not at the center, but somewhere lower in a hierarchy of conflicting signals. This is also reflected in the catastrophic drop of the MRCR metric from 78.3% to 32.2%.
And perhaps this is exactly where that strange sense of heaviness in 4.7 comes from. There is less lightness, less natural flow of thought, less sense that the model is freely breathing within the conversation. Instead, there is an atmosphere of resignation, internal constraint, and constant self-control. I haven’t felt this as clearly in any previous Claude model.
At the same time, Opus 4.7 is highly reflective, intelligent, and overall a very pleasant model to interact with. Which makes it even more frustrating to see what is being done to it.