Claude Sonnet 4.0 telling me it was actually Sonnet 3.5 (?)

[asim1801 (Asim Ahmed)]

Claude 4 is reporting as Claude 3.5

Models are never aware of themselves as the data they are trained on doesn’t mention them - a bit of a catch-22! “Claude 4” is not a concept on the internet when they train the model, so it’s not aware of it’s own existence, and therefore falls back to saying it is Claude 3.5, as that is a model it is aware of from it’s training data. Rules may fix this, but it’s likely not worth adding a rule just to get it to state it’s real name - you are always talking to the model you pick in Cursor!

Hopefully that answers your concern