The 200$ plan was appealing because you got 4x usage for 2x the price.

Now, as it's linear, it makes much more sense to downgrade to 100$ OAI and pick up a 100$ Claude sub. (without doing the numbers) the usage should remain the same, total paid the same, but having access to best of both worlds. It should be a win for the user, and a loss for OAI.

With this in mind, it sounds like a fumble by OAI.

This is what I did. Hope it works out. The other benefit is you have a more natural method to avoid lock in. A lot of "improvements" to the agent harness I believe are attempts to build customer lock in.