Jackrong·Qwen·Qwen3_5ForConditionalGeneration

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled — Hardware Requirements & GPU Compatibility

ChatReasoning

The full-precision version of Jackrong's Qwen3.5 27B reasoning distillation from Claude 4.6 Opus. With 27.8 billion parameters in unquantized form, this model preserves the maximum quality from the distillation process but requires significantly more VRAM, typically 56 GB or more in BF16. It is primarily intended for users with professional-grade GPUs or multi-GPU setups. This variant is ideal for further fine-tuning, experimentation, or running at full fidelity when hardware allows. Most users looking to run the model locally for inference should consider the GGUF-quantized version instead, which offers a much better tradeoff between quality and resource usage.

61.6K downloads 695 likesMar 2026262K context

Specifications

Publisher
Jackrong
Family
Qwen
Parameters
27.8B
Architecture
Qwen3_5ForConditionalGeneration
Context Length
262,144 tokens
Vocabulary Size
248,320
Release Date
2026-03-07
License
Apache 2.0

Get Started

How Much VRAM Does Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled Need?

Select a quantization to see compatible GPUs below.

QuantizationBitsVRAM
IQ2_XXS2.208.4 GB
IQ2_XS2.409.1 GB
IQ2_S2.509.4 GB
IQ2_M2.7010.1 GB
IQ3_XXS3.1011.5 GB
Q2_K_S3.2011.9 GB
IQ3_XS3.3012.2 GB
Q2_K3.4012.6 GB
IQ3_S3.4012.6 GB
Q3_K_S3.5012.9 GB
IQ3_M3.6013.3 GB
Q3_K_M3.9014.3 GB
Q4_04.0014.6 GB
Q3_K_L4.1015.0 GB
IQ4_XS4.3015.7 GB
Q4_14.5016.4 GB
Q4_K_S4.5016.4 GB
Q4_K_M4.8017.4 GB
Q5_K_S5.5019.9 GB
Q5_K_M5.7020.5 GB
Q6_K6.6023.7 GB
Q8_08.0028.5 GB

Which GPUs Can Run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled?

Q4_K_M · 17.4 GB

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled (Q4_K_M) requires 17.4 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 23+ GB is recommended. Using the full 262K context window can add up to 56.8 GB, bringing total usage to 74.2 GB. 6 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti.

Which Devices Can Run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled?

Q4_K_M · 17.4 GB

21 devices with unified memory can run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled, including NVIDIA DGX H100, NVIDIA DGX A100 640GB, Mac Mini M4 Pro (24 GB).

Related Models

Frequently Asked Questions

How much VRAM does Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled need?

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled requires 17.4 GB of VRAM at Q4_K_M, or 28.5 GB at Q8_0. Full 262K context adds up to 56.8 GB (74.2 GB total).

VRAM = Weights + KV Cache + Overhead

Weights = 27.8B × 4.8 bits ÷ 8 = 16.7 GB

KV Cache + Overhead 0.7 GB (at 2K context + ~0.3 GB framework)

KV Cache + Overhead 57.5 GB (at full 262K context)

VRAM usage by quantization

17.4 GB
74.2 GB

Learn more about VRAM estimation →

Can NVIDIA GeForce RTX 4090 run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled?

Yes, at Q6_K (23.7 GB) or lower. Higher quantizations like Q8_0 (28.5 GB) exceed the NVIDIA GeForce RTX 4090's 24 GB.

What's the best quantization for Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled?

For Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled, Q4_K_M (17.4 GB) offers the best balance of quality and VRAM usage. Q5_K_S (19.9 GB) provides better quality if you have the VRAM. The smallest option is IQ2_XXS at 8.4 GB.

VRAM requirement by quantization

IQ2_XXS
8.4 GB
Q2_K_S
11.9 GB
Q3_K_M
14.3 GB
Q4_K_S
16.4 GB
Q4_K_M
17.4 GB
Q8_0
28.5 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled on a Mac?

Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled requires at least 8.4 GB at IQ2_XXS, which exceeds the unified memory of most consumer Macs. You would need a Mac Studio or Mac Pro with a high-memory configuration.

Can I run Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled locally?

Yes — Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled can run locally on consumer hardware. At Q4_K_M quantization it needs 17.4 GB of VRAM. Popular tools include Ollama, LM Studio, and llama.cpp.

How fast is Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled?

At Q4_K_M, Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled can reach ~167 tok/s on AMD Instinct MI300X. On NVIDIA GeForce RTX 4090: ~38 tok/s. Speed depends mainly on GPU memory bandwidth. Real-world results typically within ±20%.

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

Example: AMD Instinct MI300X5300 ÷ 17.4 × 0.55 = ~167 tok/s

Estimated speed at Q4_K_M (17.4 GB)

~167 tok/s
~38 tok/s
~125 tok/s
~104 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 Qwen3.5 27B Claude 4.6 Opus Reasoning Distilled?

At Q4_K_M, the download is about 16.67 GB. The full-precision Q8_0 version is 27.78 GB. The smallest option (IQ2_XXS) is 7.64 GB.