XTTS-v2 vs VibeVoice-Realtime-0.5B

Specs, VRAM requirements and download trends — updated 18 September 2026.

coqui · A · Open weights
Params
—
Context
—
30d
5.7 M
microsoft · B · Open weights
Params
1.0 B
Context
—
30d
385 K
mit · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification XTTS-v2 VibeVoice-Realtime-0.5B
Parameters — 1.0 B
Architecture — VibeVoiceStreamingForConditionalGenerationInference
Context length — —
Licence other mit
Commercial use Unknown Allowed
Languages — 1
Downloads 30d 5,705,837 384,773
Downloads all time 133.9 M 5.8 M
Quantizations on the Hub — SAFETENSORS
Gated No No
First seen on the Hub 2023-10-31 2025-12-04

Download trend

Daily snapshots, last 90 days (13 Aug – 10 Nov)

8.8 M385 K
XTTS-v2 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
✅ Runs comfortably

Adjacent comparisons