Qianfan OCR — Hardware Requirements & GPU Compatibility
VisionQianfan-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.
Runs great on a 24 GB GPU
Runs from 8 GB (Q4_K_M · 32K)Best on 24 GB (Q4_K_M · ~197 tok/s · 32K)Macs from 8 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 run hf.co/Reza2kn/Qianfan-OCR-GGUF:Q4_K_MQ4_K_M fits fully on the RTX 4090 · 19.3 GB free · 16K context
Download: Qianfan-OCR-q4_k_m.gguf2.72 GBReza2kn
Ways to runOther ways
each opens step-by-stepRun 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
Runs on RTX 3080 Ti (12 GB) (7 GB headroom) · Q4_K_M
- Generation speed
- ~178 tok/s
- generation speed
- Cost per 1M output tokens
- $0.19
- per 1M output tokens
How Much VRAM Does Qianfan OCR Need?
Select a quantization level; the listed hardware adheres to it.
| Quantization | VRAM | +32K | On RTX 4090 (reference) | |
|---|---|---|---|---|
| 2.5 GB | 5.3 GB | 2-bit · K-quant — 2-bit quantization with K-quant improvements | Fits: 32K context · ~262 tok/s | |
| 2.6 GB | 5.4 GB | 3-bit small — 3-bit small quantization | Fits: 32K context · ~256 tok/s | |
| 2.8 GB | 5.6 GB | 3-bit medium — 3-bit medium quantization | Fits: 32K context · ~234 tok/s | |
| 2.9 GB | 5.7 GB | 4-bit · legacy — 4-bit legacy quantization | Fits: 32K context · ~229 tok/s | |
| 3.3 GB | 6.2 GB | 4-bit medium — 4-bit medium quantization — most popular sweet spot | Fits: 32K context · ~197 tok/s | |
| 3.9 GB | 6.7 GB | 5-bit medium — 5-bit medium quantization — good quality/size tradeoff | Fits: 32K context · ~169 tok/s | |
| 4.4 GB | 7.2 GB | 6-bit, very good — 6-bit quantization, very good quality | Fits: 32K context · ~149 tok/s | |
| 5.2 GB | 8.1 GB | 8-bit, near-lossless — 8-bit quantization, near-lossless | Fits: 32K context · ~125 tok/s |
Selected Q4_K_M
4-bit medium quantization4.7GBat 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 GBQianfan 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).
≤ 11 GB
≤ 11 GB tier →fits · 3.4 GB free · up to 32K ctx
16 GPUs · 1 Mac class · 2 device families
RTX 3080~148Simulate output on RTX 3080RTX 2080 Ti~120Simulate output on RTX 2080 TiRTX 3070 Ti~119Simulate output on RTX 3070 TiM3*8 GB~22Simulate output on iMac 24" M3 (8 GB)Orin Nano~20Simulate output on NVIDIA Jetson Orin Nano 8GB (Super)iPhone~14Simulate output on iPhone 1720 GB
fits · 15.3 GB free · up to 32K ctx
1 GPU
RX 7900 XT~144Simulate output on RX 7900 XT32–40 GB
fits · 27.4 GB free · up to 32K ctx
1 GPU · 3 Mac classes · 4 device families
RTX 5090~350Simulate output on RTX 5090M5 Max36 GB~97Simulate output on Mac Studio M5 Max (36 GB)M532 GB~32Simulate output on MacBook Air 13" M5 (32 GB)Orin~40Simulate output on NVIDIA Jetson AGX Orin 32GBSnapdragon X Elite (X1E-80-100)~26Simulate output on Snapdragon X Elite Copilot+ PC
By VRAM tier · typical GPUs and Macs at Q4_K_M
Similar models
5| Model | Score | VRAM | tok/s | Why it is similar |
|---|---|---|---|---|
| Qwen3.5 4BAlibaba | 98.5 | 3.4 GB | ~201 | same size |
| Molmo2 4BAllen AI | — | 4.7 GB | ~193 | same size |
| Qwen3 VL 4B InstructAlibaba | — | 4.5 GB | ~208 | same size |
| Qwen3.6 27B MTPLX Optimized SpeedYoussofal | — | 4 GB | ~185 | same size |
| Gemma 4 E2B IT Qat Q4 0 UnquantizedGoogle | — | 3.5 GB | ~192 | same 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
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
★ Recommended — best balance of quality and VRAM usage.
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)
Real-world results typically within ±20%. Speed depends on batch size, quantization kernel, and software stack.
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.