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deepgroveMapleForCausalLM

Maple Preview — Hardware Requirements & GPU Compatibility

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Maple Preview is a 20.2B-parameter open language model from deepgrove. It supports a context window of up to 131,072 tokens. At Q4_K_M it needs about 12.53 GB of VRAM — see which GPUs and Macs can run it below.

20.2B params · MoE1.5B active131K contextMIT2.5K downloads417 likes
S

Runs great on a 24 GB GPU

Runs from12 GB Q3_K_M · 32KBest on24 GB Q4_K_M · ~366 tok/s · 128KMacs from16 GB Q3_K_M · ~98 tok/s

MIT

Reference GPU · RTX 4090 24 GB

Estimates, ±20% · how we estimate

Run Maple Preview

One recommended way. Every other method, OS and quant is in the step-by-step guide.

Recommended

vLLM
one command · needs vLLM installed
$vllm serve deepgrove/maple-preview --max-model-len 16384

vLLM repo with its own quantisation

Download: Weights on Hugging Face

install, OS, other quants

Other ways

each opens step-by-step

Run in cloud

Fits on Tesla P40 (24 GB) (10 GB headroom) · Q4_K_M

Generation speed
~184 tok/s
generation speed
Cost per 1M output tokens
$0.18
per 1M output tokens

How Much VRAM Does Maple Preview Need?

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

QuantizationVRAM+32KOn RTX 4090 (reference)
9.0 GB10.5 GB2-bit · K-quant — 2-bit quantization with K-quant improvementsFits: 128K context · ~429 tok/s
10.3 GB11.8 GB3-bit medium — 3-bit medium quantizationFits: 128K context · ~404 tok/s
12.5 GB14 GB4-bit medium — 4-bit medium quantization — most popular sweet spotFits: 128K context · ~366 tok/s
14.8 GB16.3 GB5-bit medium — 5-bit medium quantization — good quality/size tradeoffFits: 128K context · ~335 tok/s
17.1 GB18.6 GB6-bit, very good — 6-bit quantization, very good qualityFits: 128K context · ~308 tok/s
20.6 GB22.1 GB8-bit, near-lossless — 8-bit quantization, near-losslessFits: 64K context · ~275 tok/s
40.8 GB42.3 GB16-bit · bfloat — Brain floating point 16 — preferred for trainingDoes not fit: needs 41.5 GB
est.calculated, no published file yet

Selected Q4_K_M

4-bit medium quantization

13.2GBat 16K context

Weights
12.1 GB
KV cache
0.8 GB
Overhead
0.3 GB

Fits RTX 4090 (reference) · 10.8 GB free · ~366 tok/s

≥50 tok/s needs ≥76 GB/s · RTX 5090 ~473, RTX 3090 Ti ~366

Which Hardware Can Run Maple Preview?

Q4_K_M · 12.5 GB

Maple Preview (Q4_K_M) requires 12.5 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 17+ GB is recommended. Using the full 131K context window can add up to 6.3 GB, bringing total usage to 18.9 GB. 26 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti, NVIDIA GeForce RTX 5080. 125 devices with unified memory can run Maple Preview, including Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB), MacBook Pro 14" M3 Pro (18 GB).

By VRAM tier · typical GPUs and Macs at Q4_K_M
8 GB · RTX 4060Doesn't fit — smallest quant needs 9.7 GB8 GB tier →
12 GB · RTX 3060 12GBQ3_K_M · 11 GB · ~220 tok/s · 32K12 GB tier →
16 GB · RTX 5060 Ti 16GBQ4_K_M · 13.2 GB · ~223 tok/s · 64K16 GB tier →
24 GB · RTX 4090referenceQ4_K_M · 13.2 GB · ~366 tok/s · 128K24 GB tier →
Mac 32 GB · Mac Mini M4Q4_K_M · 13.2 GB · ~63 tok/s · 128KMacs →
Mac 64 GB · Mac Studio M4 MaxQ4_K_M · 13.2 GB · ~139 tok/s · 128KMacs →

Alternatives to Maple Preview

Similar models

3
ModelScoreVRAMtok/sWhy it is similar
InternVL3 5 GPT OSS 20B A4B Preview HFOpenGVLab—13.6 GB~180same size
Internlm 20BInternLM—45.3 GB—needs > 24 GBsame size
ERNIE 4.5 21B A3B ThinkingBaidu—14.3 GB~213same size

Specifications

Publisher
deepgrove
Parameters
20.2B
Active parameters
1.5B per token
Architecture
MapleForCausalLM
Context Length
131,072 tokens
Vocabulary Size
151,936
Release Date
2026-08-04
License
MIT

Frequently Asked Questions

How much VRAM does Maple Preview need?

Maple Preview requires 12.5 GB of VRAM at Q4_K_M, or 40.8 GB at BF16. Full 131K context adds up to 6.3 GB (18.9 GB total).

VRAM = Weights + KV Cache + Overhead

Weights = 20.2B × 4.8 bits ÷ 8 = 12.1 GB

KV Cache + Overhead ≈ 0.4 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 ≈ 6.8 GB (at full 131K context)

VRAM usage by quantization

12.5 GB
18.9 GB

Learn more about VRAM estimation →

Can NVIDIA GeForce RTX 4090 run Maple Preview?

Yes, at Q8_0 (20.6 GB) or lower. Higher quantizations like BF16 (40.8 GB) exceed the NVIDIA GeForce RTX 4090's 24 GB.

What's the best quantization for Maple Preview?

For Maple Preview, Q4_K_M (12.5 GB) offers the best balance of quality and VRAM usage. Q5_K_M (14.8 GB) provides better quality if you have the VRAM. The smallest option is Q2_K at 9.0 GB.

VRAM requirement by quantization

Q2_K
9.0 GB
Q4_K_M ★
12.5 GB
Q5_K_M
14.8 GB
Q6_K
17.1 GB
Q8_0
20.6 GB
BF16
40.8 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Maple Preview on a Mac?

Yes — Mac Mini M2 Pro (16 GB) and 133 other Macs can run Maple Preview, the smallest at Q3_K_M. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 12.5 GB of usable unified memory (RAM minus macOS overhead), from MacBook Pro 14" M3 Pro (18 GB).

Can I run Maple Preview locally?

Yes — Maple Preview can run locally on consumer hardware. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is Maple Preview?

At Q4_K_M, Maple Preview can reach ~200 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~366 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.

tok/s = 1000 ÷ (active GB ÷ (bandwidth GB/s × efficiency) × 1000 + layers × routing ms)

Mixture-of-Experts: just the active experts get read for each token, along with a fixed routing cost per layer.

Example: NVIDIA B200 → 0.9 GB active ÷ (8000 × 0.65) = 0.178 ms, plus 24 layers × 0.055 ms = 1.320 ms, so 1000 ÷ 1.498 ms = ~668 tok/s

Estimated speed at Q4_K_M (12.5 GB)

~668 tok/s
~366 tok/s
~668 tok/s
~621 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 Maple Preview?

At Q4_K_M, the download is about 12.13 GB. The full-precision BF16 version is 40.43 GB. The smallest option (Q2_K) is 8.59 GB.

Which GPUs can run Maple Preview?

26 consumer GPUs can run Maple Preview at Q4_K_M. Top options include AMD Radeon RX 7900 XT, AMD Radeon RX 7900 XTX, NVIDIA GeForce RTX 3090, AMD Radeon RX 6800. 8 GPUs have plenty of headroom for comfortable inference.

Which devices can run Maple Preview?

125 devices with unified memory can run Maple Preview at Q4_K_M (12.5 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.