Step 3

{
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  "created": null,
  "owned_by": "stepfun",
  "name": "Step 3",
  "api": {
    "types": [
      "chat"
    ]
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    "output": null
  },
  "modalities": {
    "input": [
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    ],
    "output": [
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  },
  "reasoning": {
    "supported": true,
    "efforts": []
  },
  "pricing": {
    "currency": "CNY",
    "unit": "1M_tokens",
    "input": 1.5,
    "output": 4,
    "cache_read": 0.3,
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  "features": [],
  "info": {
    "status": "retired",
    "release_date": null,
    "knowledge_cutoff": null,
    "description": "Reasoning model with strong visual perception and complex reasoning. Retired on 2026-07-08 per the official lifecycle page.",
    "docs": "https://platform.stepfun.com/docs/zh/guides/model-migration",
    "verified_at": "2026-10-11"
  }
}