As long as you can opt-out it doesn't bother me much. Though it does make me wonder those third party clients that people subscribe to e.g. JetBrains AI, Zed, and others that use Claude and other Anthropic models, do they opt-in for you? Because that would be bad.

I would strongly argue that API clients should NEVER be opted in for these sorts of things, and it should be like this industry wide.

That’s also explained. It’s excluded:

> They do not apply to services under our Commercial Terms, including Claude for Work, Claude Gov, Claude for Education, or API use, including via third parties such as Amazon Bedrock and Google Cloud’s Vertex AI.

I’ll edit my comment above to include this too

Perfect! Thank you. This makes sense, anyone who deviates from this should be shunned if they take API clients and use that data, I think that's the bigger deal breaker, I have a feeling the whole industry quietly agrees / adheres to this, but I would not be surprised if there's some that do not.

You can opt out until September 28th. After that day all Claude usage will be under the new terms and conditions

All new or resumed Claude usage. You’d have to open one of the apps and dismiss the pop-up about it and then start or resume a chat.