Instructions to use internlm/Intern-S1 with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use internlm/Intern-S1 with Transformers:

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

pipe = pipeline("image-text-to-text", model="internlm/Intern-S1", trust_remote_code=True)
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 AutoModelForCausalLM
model = AutoModelForCausalLM.from_pretrained("internlm/Intern-S1", trust_remote_code=True, dtype="auto")

Notebooks
Google Colab
Kaggle
Local Apps

vLLM

How to use internlm/Intern-S1 with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "internlm/Intern-S1"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "internlm/Intern-S1",
		"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/internlm/Intern-S1

SGLang

How to use internlm/Intern-S1 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 "internlm/Intern-S1" \
    --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": "internlm/Intern-S1",
		"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 "internlm/Intern-S1" \
        --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": "internlm/Intern-S1",
		"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 internlm/Intern-S1 with Docker Model Runner:
```
docker model run hf.co/internlm/Intern-S1
```

RangiLyu commited on Aug 4, 2025

Commit

edeb08e

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Update README.md

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README.md CHANGED Viewed

@@ -191,30 +191,34 @@ print(decoded_output)
 ### Serving
-You can utilize one of the following LLM inference frameworks to create an OpenAI compatible server:
 #### [lmdeploy(>=0.9.2)](https://github.com/InternLM/lmdeploy)
-```
 lmdeploy serve api_server internlm/Intern-S1 --reasoning-parser intern-s1 --tool-call-parser intern-s1 --tp 8
 ```
 #### [vllm](https://github.com/vllm-project/vllm)
-Coming soon.
 #### [sglang](https://github.com/sgl-project/sglang)
-Supporting Intern-S1 with SGLang is still in progress. Please refer to this [PR](https://github.com/sgl-project/sglang/pull/8350).
 ```bash
-CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 \
-    python3 -m sglang.launch_server \
     --model-path internlm/Intern-S1 \
     --trust-remote-code \
-    --mem-fraction-static 0.85 \
     --tp 8 \
-    --enable-multimodal \
     --grammar-backend none
 ```
@@ -225,7 +229,7 @@ CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 \
 curl -fsSL https://ollama.com/install.sh | sh
 # fetch model
 ollama pull internlm/interns1
-# run model
 ollama run internlm/interns1
 # then use openai client to call on http://localhost:11434/v1
 ```

 ### Serving
+The minimum hardware requirements for deploying Intern-S1 series models are:
+|                                  Model                                  | A100(GPUs) | H800(GPUs) | H100(GPUs) | H200(GPUs) |
+| :---------------------------------------------------------------------: | :--------: | :--------: | :--------: | :--------: |
+|     [internlm/Intern-S1](https://huggingface.co/internlm/Intern-S1)     |     8      |     8      |     8      |     4      |
+| [internlm/Intern-S1-FP8](https://huggingface.co/internlm/Intern-S1-FP8) |     -      |     4      |     4      |     2      |
+You can utilize one of the following LLM inference frameworks to create an OpenAI compatible server:
 #### [lmdeploy(>=0.9.2)](https://github.com/InternLM/lmdeploy)
+```bash
 lmdeploy serve api_server internlm/Intern-S1 --reasoning-parser intern-s1 --tool-call-parser intern-s1 --tp 8
 ```
 #### [vllm](https://github.com/vllm-project/vllm)
+```bash
+vllm serve internlm/Intern-S1 --tensor-parallel-size 8 --trust-remote-code
+```
 #### [sglang](https://github.com/sgl-project/sglang)
 ```bash
+python3 -m sglang.launch_server \
     --model-path internlm/Intern-S1 \
     --trust-remote-code \
     --tp 8 \
     --grammar-backend none
 ```
 curl -fsSL https://ollama.com/install.sh | sh
 # fetch model
 ollama pull internlm/interns1
+# run model
 ollama run internlm/interns1
 # then use openai client to call on http://localhost:11434/v1
 ```