chatterbox vs VibeVoice-Realtime-0.5B
Specs, VRAM requirements and download trends — updated 6 August 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | chatterbox | VibeVoice-Realtime-0.5B |
|---|---|---|
| Parameters | — | 1.0 B |
| Architecture | — | VibeVoiceStreamingForConditionalGenerationInference |
| Context length | — | — |
| Licence | mit | mit |
| Commercial use | Allowed | Allowed |
| Languages | 23 | 1 |
| Downloads 30d | 2,504,910 | 656,627 |
| Downloads all time | 19.2 M | 5.1 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2025-04-24 | 2025-12-04 |
Download trend
Daily snapshots, last 10 days (28 Jul – 6 Aug)
2.6 M650 K
chatterbox
VibeVoice-Realtime-0.5B
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
VibeVoice-Realtime-0.5B · fp16
2.9 GB / 24 GB
chatterbox · fp16
12.2 GB / 24 GB