Why would they not be use RL to learn if its OpenCode instead of Claude Code?

The tool calls,reasoning etc are still sent, tracked and used by Anthropic, the model cannot function well without that kind of detail.

OpenCode also get more data if they to train their own model with, however at this point only few companies can attempt to do foundational model training runs so I don't think the likes of Anthropic is worried about a small player also getting their user data.

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> it looks performative and I suspect many are not being honest.

Quite possible if they were leveraging the cost arbitrage i.e. the fact at the actual per token cost was cheaper because of this loophole. Now their cost is higher, they perhaps don't need/want/value the quality for the price paid, so will go to Kimi K2/ Grok Code/ GLM Air for better pricing, basically if all you value is cost per token this change is reason enough to switch.

These are kind of users Anthropic perhaps doesn't want. Somewhat akin to Apple segmenting and not focusing on the budget market.