Yes, ChatGPT can do all three of those tasks.
It can write original text in many styles, such as emails, essays, stories, summaries, reports, captions, and code-related explanations. It can also help improve wording, adjust tone, and rewrite content for a specific audience.
It can summarize text by identifying the main ideas and condensing longer content into a shorter version. That can be useful for articles, meeting notes, documents, or transcripts. The summary can be brief or detailed, depending on what is needed.
It can also translate text between many languages. The quality is often strong for common languages and everyday content, though it may be less reliable with highly technical, legal, literary, or culturally nuanced material. In those cases, it is wise to review the result carefully.
So, in short, ChatGPT is designed to help with writing, summarizing, and translating, but the output should still be checked for accuracy when the stakes are high. If you want to verify a specific feature or language support, the current web page usually has the most up to date information.