Models / Ling 3.0 Flash
Best home rig for Ling 3.0 Flash
Legacy model124B total · 5.1B active1 measured result model info ↗
Real, measured generation speeds for Ling 3.0 Flash on home hardware, fastest first. Different quants/engines aren't directly comparable.
| Build | Quant | Engine | tok/s | Prompt processing (tok/s) | Cost | Source |
|---|---|---|---|---|---|---|
| DGX Spark: Ling 3.0 Flash INT4 on SGLang, 83 tok/s (Mia's AI Lab recipe) | INT4 + DSpark | SGLang, 1 stream | 83 ⚡ | – | github.com ↗ |
Prompt processing = prefill speed reported by the source, @ prompt length. * est. TTFT @8k is calculated from measured prefill, not measured. Why it matters.
Memory math: how much VRAM / RAM does Ling 3.0 Flash need?
Ling 3.0 Flash has 124B parameters, about 5.1B active per token (source: inclusionAI model card: 124B total, 5.1B activated (Hugging Face safetensors total 127.5B)). Weight size = parameters × bits-per-weight ÷ 8, before context (KV cache) and runtime overhead.
| Format | Bits/weight | Weights | Smallest common memory size that holds the weights alone |
|---|---|---|---|
| Q8_0 | 8.50 | 131.8 GB | 192 GB |
| Q6_K | 6.56 | 101.7 GB | 128 GB |
| Q5_K_M | 5.70 | 88.4 GB | 96 GB |
| Q4_K_M | 4.89 | 75.9 GB | 96 GB |
| Q3_K_M | 4.00 | 61.9 GB | 64 GB |
| Q2_K | 3.16 | 49.0 GB | 64 GB |
Bits-per-weight for GGUF quants are llama.cpp's own figures (llama.cpp quantize README). "As measured" rows apply the source's stated bits-per-weight to the parameter count; real files differ slightly because some layers stay at higher precision. Try other combinations in the VRAM calculator.
Why it can still run on smaller GPUs: it is a mixture-of-experts model, so only about 5.1B of its 124B parameters are used for each generated token. Runtimes such as llama.cpp (--n-cpu-moe), ExLlamaV3 or Project Maya can keep most expert weights in system RAM and only the shared layers and hot experts in VRAM. Then you need VRAM + system RAM ≥ weights, and speed is limited mainly by RAM bandwidth.
FAQ
How much VRAM does Ling 3.0 Flash need?
The weights are about 75.9 GB at Q4_K_M (124B params × 4.89 bits ÷ 8, before context/KV cache). Add memory for context (KV cache) and the runtime. The smallest-memory setup with a measured result here, fully in memory, is DGX Spark (GB10) (128 GB) at 83 tok/s.
What is the fastest measured hardware for Ling 3.0 Flash?
DGX Spark (GB10): 83 tok/s generation (SGLang, 1 stream, INT4 + DSpark), from https://github.com/MiaAI-Lab/Ling-3.0-Flash-SGLang-DSpark-DGX-Spark.
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