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license: apache-2.0
base_model: openbmb/MiniCPM5-1B
pipeline_tag: text-generation
library_name: coreai
tags:
- core-ai
- ios
- on-device
- minicpm5
---
# Fieldnote models
MiniCPM5 1B compiled ahead of time for Apple's Core AI, one ready-to-load bundle per
iPhone chip family. Used by [Fieldnote](https://github.com/array-ai/fieldnotes), an
on-device meeting recorder, to write meeting notes without compiling the model on
the phone (the on-phone compile of a larger model ran an iPhone 16 out of memory).
## Bundles
| Folder | Core AI architecture | Phones |
|---|---|---|
| `ios-h17g` | h17g | iPhone 16 family |
| `ios-h17p` | h17p | iPhone 16 family |
| `ios-h18p` | h18p | iPhone 17 Pro |
Each folder is a complete bundle: `metadata.json` (pointing at the compiled model),
`tokenizer/`, and `minicpm5_1b_minicpm5_pal8_g32_static.<arch>.aimodelc`. A phone
needs only the folder whose architecture matches `AIModel.deviceArchitectureName`.
Other devices should use the portable model below and let Core AI compile it.
## Source and build
- Model: [openbmb/MiniCPM5-1B](https://huggingface.co/openbmb/MiniCPM5-1B), 8-bit
palettized, 4,096-token context.
- Portable Core AI export: [mlboydaisuke/MiniCPM5-1B-CoreAI](https://huggingface.co/mlboydaisuke/MiniCPM5-1B-CoreAI)
`ios-static/` at revision `f38d143ec50cb2e54d8388479b919e3b9283943b`.
- Compiled on GitHub Actions (Xcode 27, Metal Toolchain) by
[`compile-models.yml`](https://github.com/array-ai/fieldnotes/blob/main/.github/workflows/compile-models.yml):
```
xcrun coreai-build compile minicpm5_1b_minicpm5_pal8_g32_static.aimodel \
--platform iOS --min-deployment-version 27.0 --architecture <arch> --output <dir>
```
Compute units were left to Core AI's default choice. Some on-device specialization
still happens at first load, but not the full compile.
## Loading
```swift
import CoreAI
import CoreAILanguageModels
let arch = AIModel.deviceArchitectureName // e.g. "h17g"
let bundle = modelsDirectory.appending(path: "ios-\(arch)")
let model = try await CoreAILanguageModel(resourcesAt: bundle)
```
Fieldnote downloads only the matching folder, from a pinned revision of this repo,
and checks every file against its SHA-256 before use.
## Licence
MiniCPM5 is released by OpenBMB under the Apache License 2.0, and so are these
compiled bundles (see `LICENSE`). No weights were changed; the files here are the
portable export compiled for specific chips.
|