llmrun
BaiduQianfanOCRForConditionalGeneration

Qianfan OCR — Hardware Requirements & GPU Compatibility

Vision

Qianfan-OCR is Baidu's 4.7-billion-parameter vision-language model for document intelligence rather than general chat. It pairs a Qianfan-ViT vision encoder with a Qwen3-4B language backbone, doing direct image-to-Markdown conversion alongside table extraction, chart understanding, and document Q&A in one end-to-end model instead of a multi-stage pipeline. It also has an optional "Layout-as-Thought" mode that reasons about page layout before producing output. At under 5 billion parameters, it runs on a single consumer or prosumer GPU once quantized. Context length is 32,768 tokens, extendable further per Baidu's documentation. It is released under the Apache 2.0 license, permitting unrestricted commercial and research use. Published in March 2026, Baidu reports it as its top-scoring end-to-end model on public document-parsing benchmarks, supporting 192 languages.

4.7B params · dense33K contextApache 2.031.2K downloads1.2K likes1.6K quant downloads
S

Runs great on a 24 GB GPU

Runs from8 GB Q4_K_M · 32KBest on24 GB Q4_K_M · ~197 tok/s · 32KMacs from8 GB Q4_K_M · ~22 tok/s

Apache 2.0

Reference GPU · RTX 4090 24 GB

Estimates, ±20% · how we estimate

Run Qianfan OCR

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

Ollama
one command · needs Ollama installed
$ollama run hf.co/Reza2kn/Qianfan-OCR-GGUF:Q4_K_M

Q4_K_M fits fully on the RTX 4090 · 19.3 GB free · 16K context

Download: Qianfan-OCR-q4_k_m.gguf2.72 GBReza2kn

install, OS, other quants

Ways to runOther ways

each opens step-by-step

Run in cloud

Your own private copy · Q4_K_M · 24 GB GPU

  • The easiest way to try this model
  • Running in a few minutes, easy setup
  • Chat right here or connect any app

$5+ bonus for new users

How Much VRAM Does Qianfan OCR Need?

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

QuantizationVRAM+32KOn RTX 4090 (reference)
2.5 GB5.3 GB2-bit · K-quant — 2-bit quantization with K-quant improvementsFits: 32K context · ~262 tok/s
2.6 GB5.4 GB3-bit small — 3-bit small quantizationFits: 32K context · ~256 tok/s
2.8 GB5.6 GB3-bit medium — 3-bit medium quantizationFits: 32K context · ~234 tok/s
2.9 GB5.7 GB4-bit · legacy — 4-bit legacy quantizationFits: 32K context · ~229 tok/s
3.3 GB6.2 GB4-bit medium — 4-bit medium quantization — most popular sweet spotFits: 32K context · ~197 tok/s
3.9 GB6.7 GB5-bit medium — 5-bit medium quantization — good quality/size tradeoffFits: 32K context · ~169 tok/s
4.4 GB7.2 GB6-bit, very good — 6-bit quantization, very good qualityFits: 32K context · ~149 tok/s
5.2 GB8.1 GB8-bit, near-lossless — 8-bit quantization, near-losslessFits: 32K context · ~125 tok/s

Selected Q4_K_M

4-bit medium quantization

4.7GBat 16K context

Weights
2.8 GB
KV cache
1.5 GB
Overhead
0.3 GB

Fits RTX 4090 (reference) · 19.4 GB free · ~197 tok/s

≥50 tok/s needs ≥256 GB/s · RTX 5090 ~350, RTX 3090 Ti ~197

Which Hardware Can Run Qianfan OCR?

Q4_K_M · 3.3 GB

Qianfan OCR (Q4_K_M) requires 3.3 GB of VRAM to load the model weights. For comfortable inference with headroom for KV cache and system overhead, 5+ GB is recommended. Using the full 33K context window can add up to 2.8 GB, bringing total usage to 6.2 GB. 52 GPUs can run it, including NVIDIA GeForce RTX 5090, NVIDIA GeForce RTX 3090 Ti. 163 devices with unified memory can run Qianfan OCR, including Mac Studio (M3 Ultra, 256GB), Mac Studio (M3 Ultra, 512GB), MacBook Air 13" M3 (8 GB).

By VRAM tier · typical GPUs and Macs at Q4_K_M
8 GB · RTX 4060Q4_K_M · 4.7 GB · ~53 tok/s · 32K8 GB tier →
12 GB · RTX 3060 12GBQ4_K_M · 4.7 GB · ~70 tok/s · 32K12 GB tier →
16 GB · RTX 5060 Ti 16GBQ4_K_M · 4.7 GB · ~87 tok/s · 32K16 GB tier →
24 GB · RTX 4090referenceQ4_K_M · 4.7 GB · ~197 tok/s · 32K24 GB tier →
Mac 32 GB · Mac Mini M4Q4_K_M · 4.7 GB · ~25 tok/s · 32KMacs →
Mac 64 GB · Mac Studio M4 MaxQ4_K_M · 4.7 GB · ~115 tok/s · 32KMacs →

Alternatives to Qianfan OCR

Similar models

5
ModelScoreVRAMtok/sWhy it is similar
Qwen3.5 4BAlibaba98.53.4 GB~201same size
Molmo2 4BAllen AI—4.7 GB~193same size
Qwen3 VL 4B InstructAlibaba—4.5 GB~208same size
Qwen3.6 27B MTPLX Optimized SpeedYoussofal—4 GB~185same size
Gemma 4 E2B IT Qat Q4 0 UnquantizedGoogle—3.5 GB~192same size

Specifications

Publisher
Baidu
Parameters
4.7B
Architecture
QianfanOCRForConditionalGeneration
Context Length
32,768 tokens
Vocabulary Size
153,678
Release Date
2026-03-18
License
Apache 2.0

Frequently Asked Questions

How much VRAM does Qianfan OCR need?

Qianfan OCR requires 3.3 GB of VRAM at Q4_K_M, or 10.0 GB at BF16. Full 33K context adds up to 2.8 GB (6.2 GB total).

VRAM = Weights + KV Cache + Overhead

Weights = 4.7B × 4.8 bits ÷ 8 = 2.8 GB

KV Cache + Overhead ≈ 0.5 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 ≈ 3.4 GB (at full 33K context)

VRAM usage by quantization

3.3 GB
6.2 GB

Learn more about VRAM estimation →

What's the best quantization for Qianfan OCR?

For Qianfan OCR, Q4_K_M (3.3 GB) offers the best balance of quality and VRAM usage. Q5_K_S (3.8 GB) provides better quality if you have the VRAM. The smallest option is Q2_K at 2.5 GB.

VRAM requirement by quantization

Q2_K
2.5 GB
Q4_0
2.9 GB
Q4_K_M ★
3.3 GB
Q5_K_S
3.8 GB
Q6_K
4.4 GB
BF16
10.0 GB

★ Recommended — best balance of quality and VRAM usage.

Learn more about quantization →

Can I run Qianfan OCR on a Mac?

Yes — MacBook Air 13" M3 (8 GB) and 145 other Macs can run Qianfan OCR. Apple Silicon uses unified memory, so the model shares RAM with the system. At Q4_K_M you need at least 3.3 GB of usable unified memory (RAM minus macOS overhead).

Can I run Qianfan OCR locally?

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

How fast is Qianfan OCR?

At Q4_K_M, Qianfan OCR can reach ~1441 tok/s on AMD Instinct MI350X. On NVIDIA GeForce RTX 4090: ~197 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 ÷ 3.33 × 0.65 = ~1562 tok/s

Estimated speed at Q4_K_M (3.3 GB)

~1562 tok/s
~197 tok/s
~1562 tok/s
~1441 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 Qianfan OCR?

At Q4_K_M, the download is about 2.84 GB. The full-precision BF16 version is 9.48 GB. The smallest option (Q2_K) is 2.02 GB.

Which GPUs can run Qianfan OCR?

52 consumer GPUs can run Qianfan OCR 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 Qianfan OCR?

163 devices with unified memory can run Qianfan OCR at Q4_K_M (3.3 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.