Spark X2.5-4B

{
  "id": "spark-x2.5-4b",
  "object": "model",
  "created": 1788134400,
  "owned_by": "iflytek",
  "name": "Spark X2.5-4B",
  "api": {
    "types": [
      "chat"
    ]
  },
  "limits": {
    "context": 1048576,
    "input": null,
    "output": null
  },
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "reasoning": {
    "supported": null,
    "efforts": []
  },
  "pricing": null,
  "features": [],
  "info": {
    "status": "active",
    "release_date": "2026-08-31",
    "knowledge_cutoff": null,
    "description": "iFlytek 4B dense Spark X2.5 model with 1M context for small and medium-sized business integrations.",
    "docs": "https://www.xfyun.cn/doc/spark/Spark-X2.5%E6%A8%A1%E5%9E%8B%E4%BB%8B%E7%BB%8D.html",
    "verified_at": "2026-10-10"
  }
}