Instructions to use raxcore-dev/rax-3.5-chat with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use raxcore-dev/rax-3.5-chat with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("image-text-to-text", model="raxcore-dev/rax-3.5-chat")
messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "url": "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/p-blog/candy.JPG"},
            {"type": "text", "text": "What animal is on the candy?"}
        ]
    },
]
pipe(text=messages)

# Load model directly
from transformers import AutoProcessor, AutoModelForImageTextToText

processor = AutoProcessor.from_pretrained("raxcore-dev/rax-3.5-chat")
model = AutoModelForImageTextToText.from_pretrained("raxcore-dev/rax-3.5-chat")
messages = [
    {
        "role": "user",
        "content": [
            {"type": "image", "url": "https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/p-blog/candy.JPG"},
            {"type": "text", "text": "What animal is on the candy?"}
        ]
    },
]
inputs = processor.apply_chat_template(
	messages,
	add_generation_prompt=True,
	tokenize=True,
	return_dict=True,
	return_tensors="pt",
).to(model.device)

outputs = model.generate(**inputs, max_new_tokens=40)
print(processor.decode(outputs[0][inputs["input_ids"].shape[-1]:]))

Inference
Notebooks
Google Colab
Kaggle
Local Apps

vLLM

How to use raxcore-dev/rax-3.5-chat with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "raxcore-dev/rax-3.5-chat"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "raxcore-dev/rax-3.5-chat",
		"messages": [
			{
				"role": "user",
				"content": [
					{
						"type": "text",
						"text": "Describe this image in one sentence."
					},
					{
						"type": "image_url",
						"image_url": {
							"url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg"
						}
					}
				]
			}
		]
	}'

Use Docker

docker model run hf.co/raxcore-dev/rax-3.5-chat

SGLang

How to use raxcore-dev/rax-3.5-chat with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "raxcore-dev/rax-3.5-chat" \
    --host 0.0.0.0 \
    --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "raxcore-dev/rax-3.5-chat",
		"messages": [
			{
				"role": "user",
				"content": [
					{
						"type": "text",
						"text": "Describe this image in one sentence."
					},
					{
						"type": "image_url",
						"image_url": {
							"url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg"
						}
					}
				]
			}
		]
	}'

Use Docker images

docker run --gpus all \
    --shm-size 32g \
    -p 30000:30000 \
    -v ~/.cache/huggingface:/root/.cache/huggingface \
    --env "HF_TOKEN=<secret>" \
    --ipc=host \
    lmsysorg/sglang:latest \
    python3 -m sglang.launch_server \
        --model-path "raxcore-dev/rax-3.5-chat" \
        --host 0.0.0.0 \
        --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "raxcore-dev/rax-3.5-chat",
		"messages": [
			{
				"role": "user",
				"content": [
					{
						"type": "text",
						"text": "Describe this image in one sentence."
					},
					{
						"type": "image_url",
						"image_url": {
							"url": "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg"
						}
					}
				]
			}
		]
	}'

Docker Model Runner
How to use raxcore-dev/rax-3.5-chat with Docker Model Runner:
```
docker model run hf.co/raxcore-dev/rax-3.5-chat
```

rax-3.5-chat

File size: 1,347 Bytes

fc7e729

#!/usr/bin/env python3
"""
Test script for Rax 3.5 Chat model
"""

from transformers import AutoTokenizer, AutoModelForCausalLM
import torch

def test_rax_chat():
    print("Loading Rax 3.5 Chat model...")
    
    # Load model and tokenizer
    tokenizer = AutoTokenizer.from_pretrained(".")
    model = AutoModelForCausalLM.from_pretrained(
        ".",
        torch_dtype=torch.bfloat16,
        device_map="auto"
    )
    
    print("Model loaded successfully!")
    
    # Test conversation
    messages = [
        {"role": "system", "content": "You are Rax, a helpful AI assistant."},
        {"role": "user", "content": "Hello! Can you tell me about yourself?"}
    ]
    
    # Apply chat template
    input_text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)
    print(f"Input: {input_text}")
    
    inputs = tokenizer(input_text, return_tensors="pt")
    
    # Generate response
    with torch.no_grad():
        outputs = model.generate(
            **inputs,
            max_new_tokens=128,
            temperature=0.7,
            do_sample=True,
            pad_token_id=tokenizer.eos_token_id
        )
    
    response = tokenizer.decode(outputs[0][inputs['input_ids'].shape[1]:], skip_special_tokens=True)
    print(f"Rax: {response}")

if __name__ == "__main__":
    test_rax_chat()