// MiniCPM / VoxCPM · Vision-language
MiniCPM-V-4.6: VRAM & local deployment
1.3B parameters. About 1.5 GB at 4-bit and 3.5 GB at BF16 with one 8K-token request.
released 2026-04-13licence: Commercial OKmemory figures are estimates
01Specs
| Publisher | OpenBMB · openbmb |
|---|---|
| Family / series | MiniCPM / VoxCPM · MiniCPM-V-4.6 |
| Type | Vision-language (image-text-to-text) |
| Parameters | 1.3B Source: counted from official safetensors weights |
| Context length | 256K tokens (262,144)max_position_embeddings in config.json |
| Architecture | 24 layers (6 full-attention) · GQA+HYBRID |
| Released weights | BF16 · 2.6 GBdownload |
| Licence | Apache-2.0 · Commercial OKPermissive licence (Apache-2.0 / MIT / CC-BY / OpenMDW): commercial use allowed. |
| Released | 2026-04-13 (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) | 2.6 GB | 3.5 GB | 3.8 GB | 5.0 GB | 8GB GPU | Mac 16GB |
| FP8 / INT8 / Q8_0 | 1.4 GB | 2.1 GB | 2.4 GB | 3.6 GB | 8GB GPU | Mac 16GB |
| 4-bit (Q4_K_M / AWQ / GPTQ-Int4) | 0.8 GB | 1.5 GB | 1.8 GB | 3.0 GB | 8GB GPU | Mac 16GB |
KV cache per request: 8K 0.1 GB · 32K 0.4 GB · 128K 1.6 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
- SGLang — mentioned in the official model card
- llama.cpp — mentioned in the official model card
- Transformers — mentioned in the official model card
- Ollama — in the official Ollama library · minicpm-v4.6
ollama run minicpm-v4.604Official repositories & quantised builds
5 official repo(s) from openbmb.
- MiniCPM-V-4.6 main
- MiniCPM-V-4.6-BNB main
- MiniCPM-V-4.6-GPTQ GPTQ
- MiniCPM-V-4.6-AWQ AWQ
- MiniCPM-V-4.6-gguf GGUF
05Other MiniCPM / VoxCPM models
All 23 →| Model | Params | 4-bit total | Released |
|---|---|---|---|
| MiniCPM-V-4.7-35B-A3B | 35.2B / 3B | 24.2 GB | 2026-10-07 |
| MiniCPM-V-4.7-1B | 1.55B | 1.6 GB | 2026-10-06 |
| MiniCPM5-2B | 2.52B | 2.5 GB | 2026-09-06 |
| MiniCPM5-1B | 1.08B | 1.4 GB | 2026-05-21 |
| MiniCPM-V-4.6-Thinking | 1.3B | 1.5 GB | 2026-05-08 |
| VoxCPM2 | 2.29B | 2.0 GB | 2026-04-03 |
| MiniCPM-SALA | 9.48B | 7.1 GB | 2026-02-11 |
| MiniCPM-o-4_5 | 9.37B | 8.0 GB | 2026-02-03 |
06Sources
Data checked 2026-08-17. Parameters, context and licence are copied from the official repository; memory figures are our estimates.