Model comparison
| Model | Credit usage | Best for | Editing | Availability | Underlying model |
|---|---|---|---|---|---|
| Max | High | Complex reasoning, multi-document work, long summaries | Yes | All platforms (Plus+) | Claude Sonnet 4.6 |
| Fast | Medium | Space-level questions, deeper analysis, longer conversations | Yes | All platforms | Claude Haiku 4.5 |
| Core | Low | Everyday in-document queries, balanced performance | No | All platforms | ChatGPT Nano 5.1 |
| On-device | Free | Short rewrites, quick transformations, simple questions | No | Mac, iPad, iPhone (document level) | LLaMa 3.2 + local models |
When to choose each model
On-device
Use for quick summaries, sentence rewrites, and simple clarifications.- No credit usage
- Local processing
- Read-only conversations
Core
Use for most general-purpose, in-document questions.- Best credit efficiency among cloud models
- Good default for everyday use
- Read-only conversations
Fast
Use for space-level queries and quick edits.- Good balance of speed and quality
- Supports editing on supported platforms
- Works well for short to medium editing tasks
Max
Use for complex reasoning and high-quality editing.- Best output quality for large or structured edits
- Best for advanced multi-document analysis
- Supports editing on supported platforms
Model availability by platform
| Platform | On-device | Core | Fast | Max | Editing |
|---|---|---|---|---|---|
| macOS | ✓ | ✓ | ✓ | ✓ (Plus+) | ✓ |
| iOS | ✓ | ✓ | ✓ | ✓ (Plus+) | ✓ |
| Windows | – | ✓ | ✓ | ✓ (Plus+) | – |
| Web | – | ✓ | ✓ | ✓ (Plus+) | – |