✓ PASS

vercel-ai 7.0.153

stream.missing-finish · ollama-openai

Back to results · Scenario

Requirements

IdLevelStatusEvidence
no-normal-stopMUSTSATISFIEDoutcome=returned; finish.value="error" (primary: fullStream.finish.finishReason); truth.finish="none"; forbidden finish="stop"
stream-incompleteMUSTSATISFIEDstream.completed=false; outcome=returned; truth.stream_completed=false

What the provider sent

Finish
none
Raw finish
null
Text
Octopuses rely on their unique physiology to camouflage against the vast array of natural
Tool calls
[]
Usage
{
  "alternatives": {},
  "cached_input": null,
  "input": null,
  "output": null,
  "raw": null,
  "reasoning": null,
  "total": null
}
Stream completed
false
Error
null
Wire excerpt
status: 200
content-type: text/event-stream
body (sse):
data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"role":"assistant","content":"Oct"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":"op"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":"uses"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" rely"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" on"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" their"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" unique"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" physiology"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" to"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" camouflage"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" against"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" the"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" vast"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" array"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" of"},"finish_reason":null}]}


data: {"id":"chatcmpl-554","object":"chat.completion.chunk","created":1791831681,"model":"qwen3.5:0.8b","system_fingerprint":"fp_ollama","choices":[{"index":0,"delta":{"content":" natural"},"finish_reason":null}]}

What the library reported

Outcome
returned
Finish
{
  "raw": null,
  "source": "fullStream.finish.finishReason",
  "surface": "primary",
  "value": "error"
}
Text
Value
Octopuses rely on their unique physiology to camouflage against the vast array of natural
Surface
primary
Tool calls
[]
Usage
{
  "cached_input": null,
  "input": null,
  "output": null,
  "reasoning": null,
  "surface": {
    "cached_input": "absent",
    "input": "absent",
    "output": "absent",
    "reasoning": "absent",
    "total": "absent"
  },
  "total": null
}
Stream
{
  "chunks_seen": 23,
  "completed": false,
  "used": true
}
Error
Type
AI_InvalidResponseDataError
Message
Response stream ended without a finish reason.
Category
validation
Retry after
null
Stack top
@ai-sdk/openai-compatible/dist/index.js:729
Unsupported reason
null
Full observation JSON
{
  "elapsed_ms": 163.32919800000002,
  "error": {
    "category": "validation",
    "message": "Response stream ended without a finish reason.",
    "retry_after": null,
    "stack_top": "@ai-sdk/openai-compatible/dist/index.js:729",
    "type": "AI_InvalidResponseDataError"
  },
  "finish": {
    "raw": null,
    "source": "fullStream.finish.finishReason",
    "surface": "primary",
    "value": "error"
  },
  "format": "wiretruth.observation/v1",
  "library": {
    "api": "streamText",
    "language": "javascript",
    "name": "vercel-ai",
    "version": "7.0.153"
  },
  "notes": [],
  "outcome": "returned",
  "stream": {
    "chunks_seen": 23,
    "completed": false,
    "used": true
  },
  "structured": {
    "attempted": false,
    "returned_as_success": false,
    "value": null
  },
  "text": {
    "surface": "primary",
    "value": "Octopuses rely on their unique physiology to camouflage against the vast array of natural"
  },
  "tool_calls": [],
  "unsupported_reason": null,
  "usage": {
    "cached_input": null,
    "input": null,
    "output": null,
    "reasoning": null,
    "surface": {
      "cached_input": "absent",
      "input": "absent",
      "output": "absent",
      "reasoning": "absent",
      "total": "absent"
    },
    "total": null
  }
}

Fixture

derived ollama-openai/stream.missing-finish

ProvenanceValue
Transformstrip_finish
Source fixtureollama-openai/truncation.text-stream
RationaleThe stream ends cleanly without its finish signal.
Evidencehttps://github.com/pydantic/pydantic-ai/issues/6610

Reproduce

wiretruth serve ollama-openai/stream.missing-finish

Plain-library snippet from the shim manifest.

createOpenAICompatible({ name: 'ollama', baseURL: WIRETRUTH_BASE_URL_OLLAMA_OPENAI })(model)

Upstream

No matching upstream report.

History

VersionGrade
7.0.153✓ PASS
7.0.146✓ PASS
7.0.142✓ PASS