Models

Model Milestones

• Intern-S1-Pro: Our most advanced open-source multimodal reasoning model, currently the best overall open-source multimodal model available.
• Intern-S1: An open-source multimodal reasoning model with strong general capabilities and state-of-the-art performance across a wide range of scientific tasks.
• InternVL3.5: Our newly released general multimodal model series with exceptional image-text reasoning capabilities.

Using the Latest Model

For multi-turn conversation APIs, use the following in the model field:

• intern-latest automatically refers to our most recent model release, which currently points to intern-s1-pro.
• internvl3.5-latestautomatically refers to our most recent internvl series release, which currently points to internvl3.5-241b-a28b

You can check the specific model version they point to by checking the ref_model field in the response from the models API (e.g., intern-s1-pro).

Model List

Multimodal Models

Model	Description	Context Length
intern-latest	Alias for our most recently released Intern-series model, currently pointing to intern-s1-pro	256K
internvl3.5-latest	Alias for the latest InternVL3.5 series model, currently pointing to internvl3.5-241b-a28b	32K
intern-s1-pro	Our most advanced open-source multimodal scientific reasoning model, delivering top-tier performance	256K
intern-s1	Multimodal model with strong scientific reasoning capabilities	32K
intern-s1-mini	Lightweight multimodal model with strong scientific reasoning	32K
internvl3.5-241b-a28b	Our newest multimodal model featuring enhanced image-text comprehension and long-sequence image understanding capabilities, with performance comparable to top closed-source models	32K

Request Examples

(1) Python Example

import requests
import json

url = 'https://chat.intern-ai.org.cn/api/v1/models'
header = {
    'Content-Type': 'application/json',
    "Authorization": "Bearer eyJ0eXBlIjoiSl...Please provide the correct token!"
}
data = {}

res = requests.get(url, headers=header, data=json.dumps(data))
print(res.status_code)
print(res.json())
print(res.json()["data"])

(2) OpenAI SDK Example

from openai import OpenAI

client = OpenAI(
    api_key="eyJ0eXBlIjoiSl...Please provide the correct token!",  # Provide token here, without 'Bearer'
    base_url="https://chat.intern-ai.org.cn/api/v1/",
)

models = client.models.list()
for model in models:
    print(model)

(3) OpenAI CLI Example

openai -b "https://chat.intern-ai.org.cn/api/v1/" 
-k "eyJ0eXBlIjoiSl...Please provide the correct token!" 
api models.list

Parameter Explanation

Return Parameters

Parameter	Type	Example	Description
object	string	list	Data type returned, in this case, "list"
data	object	{ "id": "intern-latest", "object": "model", "created": 1686935002, "owned_by": "pjlab"}	Model information

Relevant Structure Explanation

• Data Structure Explanation

Parameter	Type	Example	Description
id	string	intern-latest	Model ID
object	string	model	Model category, always "model"
created	int	1677652288	Model creation timestamp
owned_by	string	SH-AILab	Model owner, default is "SH-AILab"

// Request
Schema: HTTP
Path:  /api/v1/models
Method: GET
Header: 
    sso-ak: xxxxxx
    Authorization: $BearerToken

// Response
Status Code: 200
Body:
{
    "object": "list",
    "data": [
        {
            "id": "intern-s1-mini",
            "object": "model",
            "ref_model": "intern-s1-mini",
            "created": 1755677776,
            "owned_by": "SH-AILab"
        },
        {
            "id": "internvl3.5-241b-a28b",
            "object": "model",
            "ref_model": "internvl3.5-241b-a28b",
            "created": 1756368976,
            "owned_by": "SH-AILab"
        },
        {
            "id": "internvl3.5-latest",
            "object": "model",
            "ref_model": "internvl3.5-241b-a28b",
            "created": 1756368976,
            "owned_by": "SH-AILab"
        },
        {
            "id": "internvl-latest",
            "object": "model",
            "ref_model": "internvl3.5-241b-a28b",
            "created": 1756368976,
            "owned_by": "SH-AILab"
        },
        {
            "id": "intern-latest",
            "object": "model",
            "ref_model": "intern-s1-pro",
            "created": 1753517776,
            "owned_by": "SH-AILab"
        },
        {
            "id": "intern-s1",
            "object": "model",
            "ref_model": "Intern-S1",
            "created": 1753517776,
            "owned_by": "SH-AILab"
        },
        {
            "id": "intern-s1-pro",
            "object": "model",
            "ref_model": "intern-s1-pro",
            "created": 1753517776,
            "owned_by": "SH-AILab"
        }
    ]
}