A: Limit is hard to define, but a soft limit is around 400k * english * characters for a single document. Beyond this, if you are uploading multiple documents, we cannot guarantee a correct response. This limit would be different in different languages.
There's a seperate limit on absolute size of the document regardless of the size which is 49MB. You can upload multiple docs. Each upto 49 MB.
Could please elaborate your query regarding Claude 3 API