[blub]

Business and Enterprise plans have a no-training-on-your-data clause.

I’m not sure personal Claude has that. My account has the typical bullshit verbiage with opt-outs where nobody can really know whether they’re enforceable.

Using a personal account is akin to sharing the company code and could get one in serious trouble IMO.

[loandbehold]

You can opt-out of having your code being trained on. When Claude Code first came out Anthropic wasn't using CC sessions for training. They started training on it starting from Claude Code 2 that came out with Sonnet 4.5. User is asked on first use whether to opt-in or out of training.