AI file upload limits compared
Per-file size caps, files per chat and supported types for every major AI subscription — plus which handle scanned PDFs and large documents best.
Per-file size, count & types
| Subscription | Max file upload (approx.) | Files per chat (approx.) | Supported file types |
|---|---|---|---|
| ChatGPT | ~512 MB | ~10–20 | PDF, Office, CSV, images, code |
| Claude | ~30 MB | ~20 | PDF, text, CSV, images |
| Gemini | ~100 MB | varies | PDF, Office, Drive, images |
| Perplexity | ~50 MB | many | PDF, CSV, images, docs |
| Grok | ~20 MB | few | images, some docs |
| Copilot | ~30 MB | varies | Office, PDF, images |
| MultipleChat | up to 200 MB (higher tiers) | varies | All file types (PDF, Office, CSV, images, code + Mistral OCR) |
Big files, scans and PDFs
For large or scanned documents two things matter beyond raw upload size: OCR (reading text from images/scans) and a long context window to hold the whole document. MultipleChat accepts up to ~200 MB on higher tiers and includes Mistral OCR; ChatGPT accepts very large files; Claude has the smallest cap but a large 200K context. See the workflow rows for OCR and large-file handling.
Official pricing & limits pages
Always verify current numbers here — they change frequently.
- ChatGPT: OpenAI pricing
- Claude: Anthropic pricing
- Gemini: Google Gemini plans
- Perplexity: Perplexity Pro
- Grok: xAI Grok
- Copilot: Microsoft Copilot
Last checked 14 June 2026.
File upload limits — questions
Which AI accepts the largest file uploads?
ChatGPT accepts very large files (~512 MB per file); MultipleChat accepts up to ~200 MB on higher tiers; Gemini ~100 MB; Perplexity ~50 MB; Claude and Copilot ~30 MB. Approximate and subject to change.
Which AI is best for scanned PDFs?
Scanned documents need OCR. MultipleChat bundles Mistral OCR, which is why it leads on scans; other tools can read some scans but are less consistent.
What file types can AI subscriptions read?
Most read PDF, Office (DOCX/PPTX/XLSX), CSV, images and code. See the supported-types row above and the full matrix for details.