Short answer: yes, with two firm rules. Teachers can use ChatGPT to help with the wording and structure of reports, but no pupil names or identifying details should ever be entered, and the judgement about each child must remain entirely the teacher's.
What safe use looks like
The safe pattern is anonymise-first: write your notes about "Pupil A," use AI to turn bullet points into polished sentences or to vary your phrasing across a class set, then personalise with the real name afterwards in your own document. What's never acceptable is pasting a child's name and attainment data into a public AI tool — that's a data protection breach under UK GDPR regardless of intent. Our full guide to AI for report writing covers the workflow step by step.
Where the line sits
AI can make you faster at saying what you've decided; it must never be deciding what to say about a specific child. If a comment doesn't reflect something you genuinely know about that pupil, it shouldn't go in the report — however fluent it sounds.