// Microsoft VibeVoice / Fara / Harrier · Vision-language
Fara1.5-9B: VRAM & local deployment
9.41B parameters. About 7.0 GB at 4-bit and 21.5 GB at BF16 with one 8K-token request.
released 2026-05-12licence: Commercial OKmemory figures are estimates
01Specs
| Publisher | Microsoft · microsoft |
|---|---|
| Family / series | Microsoft VibeVoice / Fara / Harrier · Fara1.5 |
| Type | Vision-language (image-text-to-text) |
| Parameters | 9.41B Source: counted from official safetensors weights |
| Context length | 256K tokens (262,144)max_position_embeddings in config.json |
| Architecture | 32 layers (8 full-attention) · GQA+HYBRID |
| Released weights | BF16 · 18.8 GBdownload |
| Licence | MIT · Commercial OKPermissive licence (Apache-2.0 / MIT / CC-BY / OpenMDW): commercial use allowed. |
| Released | 2026-05-12 (Hugging Face repo created) |
02How much VRAM it needs (estimate)
Total = weights + 10% + 0.5GB overhead + KV cache for one request (FP16 KV). More concurrent users multiply the KV column.
| Precision | Weights | Total @ 8K | Total @ 32K | Total @ 128K | Smallest GPU | Mac |
|---|---|---|---|---|---|---|
| BF16 / FP16 (original) | 18.8 GB | 21.5 GB | 22.3 GB | 25.5 GB | RTX 4090 24GB | Mac 36GB |
| FP8 / INT8 / Q8_0 | 10.0 GB | 11.8 GB | 12.6 GB | 15.8 GB | 16GB GPU | Mac 24GB |
| 4-bit (Q4_K_M / AWQ / GPTQ-Int4) | 5.7 GB | 7.0 GB | 7.8 GB | 11.1 GB | 8GB GPU | Mac 16GB |
KV cache per request: 8K 0.3 GB · 32K 1.1 GB · 128K 4.3 GB
Bits per weight: BF16 16, FP8 8.5, 4-bit 4.85. “Fits” = total ≤ 90% of memory; Mac GPU can use ~2/3 of unified memory (≤36GB) or ~3/4 (larger). For MoE, all experts must be in memory, so size by total parameters. Method →
03How to run it
Only runtimes the publisher or the runtime’s official library names for this model.
- vLLM — mentioned in the official model card
- Transformers — mentioned in the official model card
04Official repositories & quantised builds
1 official repo(s) from microsoft.
- Fara1.5-9B main
05Other Microsoft VibeVoice / Fara / Harrier models
All 12 →| Model | Params | 4-bit total | Released |
|---|---|---|---|
| Fara1.5-4B · same series | 4.54B | 3.8 GB | 2026-07-17 |
| Fara1.5-27B · same series | 27.4B | 19.3 GB | 2026-07-17 |
| VibeVoice-ASR-Streaming-1.5B | 2.81B | 2.4 GB | 2026-09-02 |
| VibeVoice-ASR-Streaming-7B | 8.67B | 6.3 GB | 2026-09-02 |
| harrier-oss-v1-270m | 268M | 0.7 GB | 2026-03-30 |
| harrier-oss-v1-0.6b | 596M | 0.9 GB | 2026-03-30 |
| harrier-oss-v1-27b | 27B | 18.5 GB | 2026-03-30 |
| VibeVoice-ASR | 8.67B | 6.3 GB | 2026-01-21 |
| VibeVoice-Realtime-0.5B | 1.02B | 1.2 GB | 2025-12-04 |
| Fara-7B | 8.29B | 6.5 GB | 2025-10-30 |
06Sources
Data checked 2026-07-27. Parameters, context and licence are copied from the official repository; memory figures are our estimates.