tanstack-ai 1.4.0

status: 200
content-type: application/json; charset=utf-8
body (json):
{
  "model": "qwen3.5:0.8b",
  "created_at": "2026-10-12T19:01:17.433604074Z",
  "message": {
    "role": "assistant",
    "content": "",
    "thinking": "Let $n$ be the smallest positive whole number satisfying the given conditions.\nThe conditions are:\n1. Remainder when dividing by 2 is 1. So $n \\equiv 1 \\pmod 2$. This implies $n$ is odd.\n2. Remainder when dividing by"
  },
  "done": true,
  "done_reason": "length",
  "total_duration": 3728486452,
  "load_duration": 2447425,
  "prompt_eval_count": 54,
  "prompt_eval_cached_count": 0,
  "prompt_eval_duration": 554808000,
  "eval_count": 64,
  "eval_duration": 3162410000
}

{
  "elapsed_ms": 1.1738560000000007,
  "error": null,
  "finish": {
    "raw": null,
    "source": null,
    "surface": "absent",
    "value": null
  },
  "format": "wiretruth.observation/v1",
  "library": {
    "api": "chat",
    "language": "javascript",
    "name": "tanstack-ai",
    "version": "1.4.0"
  },
  "notes": [],
  "outcome": "unsupported",
  "stream": {
    "chunks_seen": null,
    "completed": null,
    "used": false
  },
  "structured": {
    "attempted": false,
    "returned_as_success": false,
    "value": null
  },
  "text": {
    "surface": "absent",
    "value": null
  },
  "tool_calls": [],
  "unsupported_reason": "TanStack AI's chat() always requests a streamed response (stream: false collects the stream), so it never sends the non-streamed request this fixture replays. https://tanstack.com/ai/latest/docs/api/ai#chat-options",
  "usage": {
    "cached_input": null,
    "input": null,
    "output": null,
    "reasoning": null,
    "surface": {
      "cached_input": "absent",
      "input": "absent",
      "output": "absent",
      "reasoning": "absent",
      "total": "absent"
    },
    "total": null
  }
}