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Llm Jp 3 150M — Hardware Requirements & GPU Compatibility

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Llm Jp 3 150M is a 152M-parameter open language model from llm-jp. It supports a context window of up to 4,096 tokens. At Q4_K_M it needs about 0.44 GB of VRAM — see which GPUs and Macs can run it below.

152M params · dense4K contextApache 2.057.8K downloads8 likes
S

Runs great on a 24 GB GPU

Runs from8 GB Q4_K_M · 4KBest on24 GB Q4_K_M · ~1489 tok/s · 4KMacs from8 GB Q4_K_M · ~163 tok/s

Apache 2.0

Reference GPU · RTX 4090 24 GB

Estimates, ±20% · how we estimate

Run Llm Jp 3 150M

One recommended way. Every other method, OS and quant is in the step-by-step guide.Each way opens a step-by-step guide for your OS and quant.

Recommended

vLLM
one command · needs vLLM installed
$vllm serve llm-jp/llm-jp-3-150m --max-model-len 4096

vLLM repo with its own quantisation

Download: Weights on Hugging Face

install, OS, other quants

Ways to runOther ways

each opens step-by-step

Run in cloud

Runs on RTX 3080 Ti (12 GB) (11 GB headroom) · Q4_K_M

Generation speed
~1348 tok/s
generation speed
Cost per 1M output tokens
$0.025
per 1M output tokens

How Much VRAM Does Llm Jp 3 150M Need?

Select a quantization level; the listed hardware adheres to it.

QuantizationVRAM+32KOn RTX 4090 (reference)
0.4 GB—2-bit · K-quant — 2-bit quantization with K-quant improvementsFits: 4K context · ~1560 tok/s
0.4 GB—3-bit medium — 3-bit medium quantizationFits: 4K context · ~1560 tok/s
0.4 GB—4-bit medium — 4-bit medium quantization — most popular sweet spotFits: 4K context · ~1489 tok/s
0.5 GB—5-bit medium — 5-bit medium quantization — good quality/size tradeoffFits: 4K context · ~1424 tok/s
0.5 GB—6-bit, very good — 6-bit quantization, very good qualityFits: 4K context · ~1365 tok/s
0.5 GB—8-bit, near-lossless — 8-bit quantization, near-losslessFits: 4K context · ~1310 tok/s
0.7 GB—16-bit · bfloat — Brain floating point 16 — preferred for trainingFits: 4K context · ~1008 tok/s
est.calculated, no published file yet

Selected Q4_K_M

4-bit medium quantization

0.5GBat 4K context

Weights
0.1 GB
KV cache
0.1 GB
Overhead
0.3 GB

Fits RTX 4090 (reference) · 23.5 GB free · ~1489 tok/s

≥50 tok/s needs ≥34 GB/s · RTX 5090 ~2647, RTX 3090 Ti ~1489

Which Hardware Can Run Llm Jp 3 150M?

Q4_K_M · 0.4 GB

Llm Jp 3 150M (Q4_K_M) requires 0.4 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 1+ GB is recommended. 52 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti. 163 devices with unified memory can run Llm Jp 3 150M, including Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB).

By VRAM tier · typical GPUs and Macs at Q4_K_M
8 GB · RTX 4060Q4_K_M · 0.5 GB · ~402 tok/s · 4K8 GB tier →
12 GB · RTX 3060 12GBQ4_K_M · 0.5 GB · ~532 tok/s · 4K12 GB tier →
16 GB · RTX 5060 Ti 16GBQ4_K_M · 0.5 GB · ~662 tok/s · 4K16 GB tier →
24 GB · RTX 4090referenceQ4_K_M · 0.5 GB · ~1489 tok/s · 4K24 GB tier →
Mac 32 GB · Mac Mini M4Q4_K_M · 0.5 GB · ~191 tok/s · 4KMacs →
Mac 64 GB · Mac Studio M4 MaxQ4_K_M · 0.5 GB · ~869 tok/s · 4KMacs →

Alternatives to Llm Jp 3 150M

Similar models

1
ModelScoreVRAMtok/sWhy it is similar
Llama 160MJackFram—0.5 GB~1394same size

Specifications

Publisher
llm-jp
Parameters
152M
Architecture
LlamaForCausalLM
Context Length
4,096 tokens
Vocabulary Size
99,584
Release Date
2025-01-27
License
Apache 2.0

Frequently Asked Questions

How much VRAM does Llm Jp 3 150M need?

Llm Jp 3 150M requires 0.4 GB of VRAM at Q4_K_M, or 0.7 GB at BF16.

VRAM = Weights + KV Cache + Overhead

Weights = 152M × 4.8 bits ÷ 8 = 0.1 GB

KV Cache + Overhead ≈ 0.3 GB (at 2K context + ~0.3 GB framework)

Fit ratings and hardware model lists check this model with room for a 16K-token context, which needs a little more memory.

KV Cache + Overhead ≈ 0.4 GB (at full 4K context)

VRAM usage by quantization

0.4 GB
0.5 GB

Learn more about VRAM estimation →

What's the best quantization for Llm Jp 3 150M?

For Llm Jp 3 150M, Q4_K_M (0.4 GB) offers the best balance of quality and VRAM usage. Q5_K_M (0.5 GB) provides better quality if you have the VRAM. The smallest option is Q2_K at 0.4 GB.

VRAM requirement by quantization

Q2_K
0.4 GB
Q4_K_M ★
0.4 GB
Q5_K_M
0.5 GB
Q6_K
0.5 GB
Q8_0
0.5 GB
BF16
0.7 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Llm Jp 3 150M on a Mac?

Yes — MacBook Air 13" M3 (8 GB) and 145 other Macs can run Llm Jp 3 150M. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 0.4 GB of usable unified memory (RAM minus macOS overhead).

Can I run Llm Jp 3 150M locally?

Yes — Llm Jp 3 150M can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is Llm Jp 3 150M?

At Q4_K_M, Llm Jp 3 150M can reach ~10909 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~1489 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.

tok/s = (bandwidth GB/s ÷ model GB) × efficiency

Example: NVIDIA B200 → 8000 ÷ 0.44 × 0.65 = ~11818 tok/s

Estimated speed at Q4_K_M (0.4 GB)

~11818 tok/s
~1489 tok/s
~11818 tok/s
~10909 tok/s

Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.

Learn more about tok/s estimation →

What's the download size of Llm Jp 3 150M?

At Q4_K_M, the download is about 0.09 GB. The full-precision BF16 version is 0.30 GB. The smallest option (Q2_K) is 0.06 GB.

Which GPUs can run Llm Jp 3 150M?

52 consumer GPUs can run Llm Jp 3 150M at Q4_K_M. Top options include AMD Radeon RX 6700 XT, AMD Radeon RX 6800, AMD Radeon RX 6800 XT. 52 GPUs have plenty of headroom for comfortable inference.

Which devices can run Llm Jp 3 150M?

163 devices with unified memory can run Llm Jp 3 150M at Q4_K_M (0.4 GB), including AMD Ryzen AI 9 HX 370 (Strix Point) Laptop, ASUS Ascent GX10, Beelink GTR9 Pro (Ryzen AI Max+ 395, 128 GB), Framework Desktop (Ryzen AI Max+ 395, 128 GB). Apple Silicon Macs use unified memory shared between CPU and GPU, making them well-suited for local LLM inference.