DeepSeek · mixture of experts · MIT
What runs DeepSeek V4.1 Flash
DeepSeek's September 2026 multimodal MoE with 552B backbone parameters and 16B active per decoded token. Its very small KV cache makes long contexts practical on large-RAM machines.
- Parameters
- 552B, 16B active
- 4-bit file
- 483.0 GB
- Q4 (DwarfStar)
- Needs at 8k context
- 484.5 GB
- Longest context
- 1,048,576 tokens
Context memory: 890 bytes per token. Card figure: 890 bytes/token global KV cache, using a causal encoder-decoder layout, Compressed Sparse Attention 2 and FP4 KV storage. A small sliding-window cache comes on top. Runtimes that do not implement FP4 KV will use more. How context memory works.
Measured on this hardware
Machines that hold the 4-bit file with 8,192 tokens of context and have published runs on the same chip or cards, fastest first. Median of single-user runs with plain decoding.
No published run on a machine that fits it.
Estimated, not measured
These fit but nobody has published a run we could match. The figure is memory bandwidth divided by the bytes read per token, scaled by the share of that ceiling measured runs reach. How estimates work.
| Machine | Fit | Price | Generation |
|---|---|---|---|
| RTX 5090 + EPYC 9355P with 768 GB DDR5 (MoE offload)Hybrid GPU + RAM | GPU + RAM offloadassumed limit | ~$3,763 + unpriced parts | ~11–15 tok/sestimate, part in RAM |
Fits, no speed figure
Too large for
Apple Mac Studio (M5 Max, 32-core GPU), Apple Mac Studio (M5 Max, 40-core GPU), Apple Mac Studio (M5 Ultra, 64-core GPU), Apple Mac Studio (M5 Ultra, 80-core GPU), Apple Mac mini (M5 Pro, 16-core GPU), Apple Mac mini (M5 Pro, 20-core GPU), Apple MacBook Pro 14-inch (M5 Max, 32-core GPU), Apple MacBook Pro 14-inch (M5 Max, 40-core GPU), Apple MacBook Pro 16-inch (M5 Max, 32-core GPU), Apple MacBook Pro 16-inch (M5 Max, 40-core GPU), Framework Desktop (Ryzen AI Max+ 395), Framework Desktop (Ryzen AI Max 385), Framework Desktop (Ryzen AI Max+ PRO 495), GMKtec EVO-X2 (Ryzen AI Max+ 395), Beelink GTR9 Pro (Ryzen AI Max+ 395), Minisforum MS-S1 MAX (Ryzen AI Max+ 395), Corsair AI Workstation 300 (Ryzen AI Max+ 395), HP Z2 Mini G1a (Ryzen AI Max+ PRO 395), NVIDIA DGX Spark, Dell Pro Precision with GB10, Microsoft Surface RTX Spark Dev Box, Dell Pro Precision with GB300, Dell Pro Max Tower T2 with NVIDIA RTX PRO 6000 Blackwell, tiny corp tinybox red flash, 1x RTX 3090 (used), 2x RTX 3090 (used), 4x RTX 3090 (used) on EPYC 7003, open frame, 1x RTX 5090, 2x RTX 5090, 1x RTX PRO 6000 Blackwell, 2x Radeon RX 7900 XTX, 4x Instinct MI50 32GB (used) on EPYC 7003, 2x Intel Arc Pro B60, RTX 3090 (used) + 128 GB DDR5 on AM5 (MoE offload). A smaller quant may fit: try the calculator.
Files
| Quant | Format | Size | Repo |
|---|---|---|---|
| Q2 (DwarfStar) | GGUF | 340.6 GB | antirez/deepseek-v4.1-flash-gguf |
| Q4 (DwarfStar) | GGUF | 483.0 GB | antirez/deepseek-v4.1-flash-gguf |
Sources
- huggingface.co: model card: parameters, context length, license and attention layout; release month
- huggingface.co: downloads (last 30 days), license tag, safetensors param count
- huggingface.co: layer count, KV heads and head size
- huggingface.co: GGUF file sizes (shards summed)