Reference · Limits & formats
Limits and formats.
File types, size limits, unsupported formats, and known edge cases. If something isn't working, check here first.
File upload limits
| Type | Limit |
|---|---|
| Maximum file size (workspace) | 50 MB |
| Maximum file size (per-conversation) | 10 MB |
| ZIP extraction: max per file inside ZIP | 200 KB |
| ZIP extraction: max total content | 60,000 characters combined |
Supported file types
| Category | Extensions | Notes |
|---|---|---|
| Text | .txt .md .csv .json .xml .yaml .yml .html | Fully supported |
| Code | .py .js .ts .jsx .tsx .go .rs .rb .java .kt .swift .sql .sh .css .scss | Fully supported |
| Documents | .pdf .docx | Text extracted; formatting and images in PDFs are ignored |
| Spreadsheets | .xlsx .xls | Supported for reading and creation; Continio can generate .xlsx files during coding sessions |
| Archives | .zip | Extracted to individual files; text files only |
| Images | .jpg .jpeg .png .webp .gif | Supported for image explanation and editing |
Unsupported formats
HEIC / HEIF images
HEIC is Apple's default photo format. It is not supported for image editing. Convert to JPEG or PNG first. On iPhone: open the photo, tap Share → Save as JPEG, or use Files to export as JPG.
Video files
Not supported in any format.
Audio files
Not supported for upload. Voice input (speech-to-text) is supported via the microphone button.
.doc (legacy Word)
Legacy .doc format is not supported. Save as .docx first.
Image editing limitations
- The edit model (gpt-image-1) changes backgrounds and scene elements but cannot guarantee exact facial preservation - faces may shift slightly
- HEIC files must be converted before editing
- Very complex edits ("put this person in a completely different scene") work better than subtle edits ("adjust the lighting slightly")
Import limits
| Item | Notes |
|---|---|
| Maximum import file size | No hard limit; very large files (100MB+) use streaming upload |
| Supported sources | ChatGPT (conversations.json), Claude export |
| Memory pickup | Runs on every 10th user message during enrichment |
| Enrichment speed | Runs continuously in the background; large files may take several hours |
Memory limits by tier
| Tier | Memories | Conversation history | Workspace | Import |
|---|---|---|---|---|
| Free trial (30 days) | Unlimited | Full | Full access | Included |
| Basic ($9/mo) | 50 | Last 30 days | Add-on ($3 / 25 MB) | Phases 1 & 2 only (storage + search, no memory extraction) |
| Pro ($24/mo) | Unlimited | Full | 100 MB | Included |
| Max ($48/mo) | Unlimited | Full | 500 MB | Included |
| Founders | Unlimited | Full | Pro/Max level | Included |