Short answer: no. ChatGPT's own terms of service require users to be at least 13 (with parental permission up to 18), which excludes essentially every primary-aged child. Setting terms aside, a general-purpose AI tool with unfiltered outputs isn't an appropriate environment for young children anyway.
What this means for your school
In a primary setting, general AI tools are staff tools — for planning, drafting and resource creation, under your school's policy. That's where virtually all the workload value sits anyway. If your school wants pupil-facing AI experiences (and there can be legitimate curriculum reasons to explore what AI is), those should run through education-specific platforms designed for children, procured properly with safeguarding and data checks. Our safeguarding guide and procurement checklist cover what to look for.
Teaching about AI without pupils using it
You can teach primary pupils about AI — what it is, that it can be wrong, why you check things — through teacher-led demonstration and discussion, without children touching the tools directly. For most primary schools in 2026, that's the right level of pupil exposure.