Cohere Transcribe 2B
此 Soniqo 页面记录本地 speech-swift / speech-core 实现中的 Cohere Transcribe 2B。Hugging Face 包链接放在集成说明之后。
先进入站内页面
首页卡片和文档菜单先指向这里；源模型和权重包链接仍在本页提供。
概览
| 模型 | Cohere Transcribe 2B |
|---|---|
| 用途 | High-accuracy multilingual offline speech-to-text |
| 后端 | Native MLX on Apple Silicon |
| 输出 | Plain-text transcription |
| 语言 | 14 languages |
| 许可证 | Apache-2.0 |
| 状态 | Published FP16, INT5, and INT8 bundles; INT5 is the default |
| 来源 | Cohere Transcribe |
| Swift 产品 | CohereTranscribeASR |
| CLI / 运行时 | speech transcribe --engine cohere |
使用
下面的片段对应当前 speech-swift 仓库暴露的 API 或命令。
# INT5 is the default.
speech transcribe recording.wav --engine cohere
# Select another published precision and pass a language hint.
speech transcribe recording.wav --engine cohere --model int8 --language de
# --model also accepts a Hugging Face model ID or a local directory.
speech transcribe recording.wav --engine cohere --model /models/cohere/int5基准测试
测量于 2026-07-22，使用 80 条英语 FLEURS 朗读语音（共 759.56 秒），在配备 48 GB 内存、运行 macOS 26.5.2 的 Apple M5 Pro 上完成。每个变体都以 release 构建在独立进程中运行。
| Variant | Bundle | WER | Δ WER | Mean RTF | Overall ×RT | Footprint |
|---|---|---|---|---|---|---|
| FP16 | 3.85 GiB | 6.178% | — | 0.0444 | 23.59× | 6,724 MiB |
| INT5 | 1.62 GiB | 6.288% | +0.110 pp | 0.0150 | 69.64× | 2,582 MiB |
| INT8 | 2.25 GiB | 6.178% | +0.000 pp | 0.0159 | 65.74× | 3,292 MiB |
物理占用是与部署相关的统一内存指标，因为 MLX 可能会内存映射权重文件。FLEURS 为英语朗读语音：这些数字不代表在对话、电话、嘈杂或多说话人音频上的同等表现。
模型链接
实现说明
- The runtime resamples mono Float32 PCM to 16 kHz and handles long recordings in overlapping chunks.
- INT5 is the practical default: on the validated English FLEURS run it used a 1.62 GiB bundle, 2,582 MiB physical footprint, and 0.0150 mean RTF.
- MLX affine quantization supports 2, 3, 4, 5, 6, and 8 bits, not INT7; choose INT8 when prioritizing quality.
- This is a non-streaming engine. The CLI rejects --stream instead of silently changing behavior.