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Intern-S1

Shanghai AI Lab multimodal reasoning model.

Shanghai AI Labintern-s12025-07-26Report incorrect data

Specs

Context
—
Max output
—
Input price
—
Output price
—
Released
2025-07-26

Context

Not published

Pricing

Not published

Modalities

Input
TextImage
Output
Text

API

API types
chat

Reasoning

Reasoning
Yes
Levels
—

Info

Status
Active
Released
2025-07-26
Knowledge cutoff
—

Features

Confirmed
toolsstreaming
Source · official docsVerified 2026-10-11

How to call

1 provider

shlabmodel = intern-s1reasoning = thinking_mode

chat
POSThttps://chat.intern-ai.org.cn/api/v1/chat/completions

JSON

Standard format
intern-s1.json
{
  "id": "intern-s1",
  "object": "model",
  "created": 1753488000,
  "owned_by": "shlab",
  "name": "Intern-S1",
  "api": {
    "types": [
      "chat"
    ]
  },
  "limits": {
    "context": null,
    "input": null,
    "output": null
  },
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "text"
    ]
  },
  "reasoning": {
    "supported": true,
    "efforts": []
  },
  "pricing": null,
  "features": [
    "tools",
    "streaming"
  ],
  "info": {
    "status": "active",
    "release_date": "2025-07-26",
    "knowledge_cutoff": null,
    "description": "Shanghai AI Lab multimodal reasoning model.",
    "docs": "https://internlm.intern-ai.org.cn/doc/docs/%E6%A8%A1%E5%9E%8B%E5%88%97%E8%A1%A8/",
    "verified_at": "2026-10-11"
  }
}

Official sources

3