North Micro Vision Instruct is a 2.4B-parameter open-weight vision-language model with native-resolution image support, released under the Apache 2.0 license. It is designed as a compact foundation for prototyping, task-specific fine-tuning, and specialized multimodal applications.
Native-resolution image processing that preserves aspect ratios and fine visual detail.
Broad image-understanding capabilities across VQA, captioning, grounding, OCR, charts, and documents.
Multilingual and multi-image support.
Compact 2.4B-parameter scale suited to customization and deployment experimentation.
Apache 2.0-licensed model weights.
Model Details
Property
Value
Model ID
CohereLabs/North-Micro-Vision-Instruct
Total parameters
2.4B
Language model
2B parameters
Vision encoder
400M parameters; custom-trained starting from SigLIP 2 SO400M
Inputs
Interleaved text and images
Output
Text
Languages
English, German, French, Spanish, Italian, Portuguese, Hindi, Japanese, Korean, Chinese, Arabic, and more
Tokenizer vocabulary size
262,144
LM Backbone context window
128K tokens
Multimodal training context
8K tokens
Checkpoint precision
bfloat16
License
Apache 2.0
The language backbone supports a 128K-token context window, but the validated operating range for multimodal prompts is up to 8K tokens. Longer multimodal contexts may rely on extrapolation and have not been benchmarked.
Quickstart
Installation
Install PyTorch for your platform first. North Micro Vision requires Transformers 5.16.0, together with accelerate for automatic device placement and Pillow for image loading. Until Transformers 5.16.0 is released, install the runtime dependencies and Transformers from source:
Flash Attention 2 is optional. On supported CUDA systems, install it with:
uv pip install flash-attn --no-build-isolation
If you do not use uv, replace uv pip with pip in the commands above.
Transformers
The following example loads an image from a URL and asks the model to describe it. Prompts can interleave text with one or more images; for text-only prompts, omit the image entries.
python
1import torch
2from transformers import AutoModelForImageTextToText, AutoProcessor
34model_id ="CohereLabs/North-Micro-Vision-Instruct"56processor = AutoProcessor.from_pretrained(7 model_id,8)9model = AutoModelForImageTextToText.from_pretrained(10 model_id,11 dtype="auto",12 device_map="auto",13)1415# To enable Flash Attention 2, load the model with the following settings:16# model = AutoModelForImageTextToText.from_pretrained(17# model_id,18# dtype=torch.bfloat16,19# attn_implementation="flash_attention_2",20# device_map="auto",21# )2223image_url ="https://cdn-uploads.huggingface.co/production/uploads/66d732effe6684fc16b12c28/Io_5OCmftsmH-n158ZtPs.png"24messages =[25{26"role":"user",27"content":[28{"type":"image","url": image_url},29{"type":"text","text":"What do you see?"},30],31}32]3334inputs = processor.apply_chat_template(35 messages,36 tokenize=True,37 add_generation_prompt=True,38 return_tensors="pt",39 return_dict=True,40).to(model.device)4142outputs = model.generate(43**inputs,44 max_new_tokens=128,45 do_sample=True,46 temperature=0.7,47 top_p=0.8,48 top_k=20,49)5051generated_ids =[52 output_ids[len(input_ids):]53for input_ids, output_ids inzip(inputs.input_ids, outputs)54]55response = processor.batch_decode(56 generated_ids,57 skip_special_tokens=True,58 clean_up_tokenization_spaces=False,59)[0]60print(response)
The example uses the recommended Transformers sampling settings. For deterministic output, set do_sample=False and omit temperature, top_p, and top_k.
Grounding Coordinates
Bounding boxes are returned as [x1, y1, x2, y2] on a normalized 0–1000 scale. Map them back to the original image by scaling each axis:
North Micro Vision Instruct is intended for research and development use cases such as:
Prototyping and task-specific fine-tuning.
General visual question answering and image captioning.
Multilingual and multi-image understanding.
Visual grounding and spatial understanding.
OCR, chart and document understanding, and structured information extraction.
Limitations
The model is intended as a compact foundation for customization rather than a replacement for larger general-purpose chat assistants.
It is not a reasoning model and has limited math and code-generation capabilities.
Tool calling and agentic workflows are not supported.
System prompts are not recommended because the model was not trained with them, although the chat template accepts the system role.
Multimodal training used an 8K-token context; longer contexts have not been validated.
Native-resolution inputs can increase memory use and latency as image dimensions grow.
Benchmark Results
The complete comparison is provided below. We ran vision-language and text-only evaluations with VLMEvalKit, capping generation at 1,024 tokens; see the technical blog post for the full methodology.