Text-to-speech

Orpheus 3B (0.1 ft) requirements, license & speed

By Canopy Labs · released 2025-03-17 · 3.78B parameters

Commercial useYes
Min memoryNot stated
Runs on CPUUnknown
StreamingYes

Key facts

License
apache-2.0 source
Commercial use
Yes source
Apache-2.0 (HF repo is gated: accept terms to download)
Parameters
3.78B source
safetensors parameter count
Minimum memory
Not stated by source
Runs on CPU
Unknown
Streaming
Yes source
~200 ms streaming latency, ~100 ms with input streaming
Voice cloning
Yes source
Zero-shot cloning; README notes it was not explicitly trained for it
Languages
en source
Released
2025-03-17 source
Hugging Face repo creation date (proxy for release date)
Gated on HF
Yes accept terms on Hugging Face before downloading

Measured speed & memory

Benchmark pending. We haven't measured Orpheus 3B (0.1 ft) yet. Planned targets: Raspberry Pi 5, CPU-only x86, Apple Silicon Mac and consumer GPUs. Get notified.

Accuracy

We don't run accuracy evals. For quality and intelligibility, check the Hugging Face Open TTS Leaderboard.

Similar TTS models

Spotted an error? Report it. Every fact links to the model card or repo it came from.

New open speech models: will they run on your hardware?

One email a week: new open TTS/STT models, license gotchas, and what we measured on CPUs, Macs, Pis and consumer GPUs.