422 status code "invalid input" from Azure AI (OpenAI compatible)

[johnib]

I am unable to use my Azure AI instance running deepseek-r1 model.

After filling in the prompts depth/etc, I'm getting this exception:

Creating research plan...
APICallError [AI_APICallError]: invalid input error
    at <anonymous> (~/repos/deep-research/node_modules/@ai-sdk/provider-utils/src/response-handler.ts:59:16)
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
    at async postToApi (~/repos/deep-research/node_modules/@ai-sdk/provider-utils/src/post-to-api.ts:81:28)
    at async OpenAIChatLanguageModel.doGenerate (~/repos/deep-research/node_modules/@ai-sdk/openai/src/openai-chat-language-model.ts:367:50)
    at async fn (~/repos/deep-research/node_modules/ai/core/generate-object/generate-object.ts:489:32)
    at async <anonymous> (~/repos/deep-research/node_modules/ai/core/telemetry/record-span.ts:18:22)
    at async _retryWithExponentialBackoff (~/repos/deep-research/node_modules/ai/util/retry-with-exponential-backoff.ts:36:12)
    at async fn (~/repos/deep-research/node_modules/ai/core/generate-object/generate-object.ts:457:34)
    at async <anonymous> (~/repos/deep-research/node_modules/ai/core/telemetry/record-span.ts:18:22)
    at async generateFeedback (~/repos/deep-research/src/feedback.ts:14:24) {
  cause: undefined,
  url: 'https://DeepSeek-R1-<redacted>.eastus2.models.ai.azure.com/v1/chat/completions',
  requestBodyValues: {
    model: 'deepseek-r1',
    logit_bias: undefined,
    logprobs: undefined,
    top_logprobs: undefined,
    user: undefined,
    parallel_tool_calls: undefined,
    max_tokens: undefined,
    temperature: 0,
    top_p: undefined,
    frequency_penalty: undefined,
    presence_penalty: undefined,
    response_format: { type: 'json_schema', json_schema: [Object] },
    stop: undefined,
    seed: undefined,
    max_completion_tokens: undefined,
    store: undefined,
    metadata: undefined,
    prediction: undefined,
    reasoning_effort: undefined,
    messages: [ [Object], [Object] ]
  },
  statusCode: 422,
  responseHeaders: {
    'azureml-model-session': 'dep-dpr1-eu2-250211023104',
    'content-length': '292',
    'content-type': 'application/json',
    date: 'Wed, 12 Feb 2025 21:43:45 GMT',
    'ms-azureml-model-error-reason': 'model_error',
    'ms-azureml-model-error-statuscode': '422',
    'request-context': 'appId=cid-v1:b80100f5-1286-423d-967f-3517f665186d',
    'x-ms-client-request-id': '6307a972-af27-4161-8b29-33d8faa10810',
    'x-ms-rai-invoked': 'false',
    'x-request-id': '1f04a13e-8025-40a6-abc2-ce17bce584e2'
  },
  responseBody: `{"error":{"code":"Invalid input","status":422,"message":"invalid input error","details":[{"type":"value_error","loc":["body","response_format","type"],"msg":"Value error, Response format was json_schema but must be either 'text' or 'json_object'.","input":"json_schema","ctx":{"error":{}}}]}}`,
  isRetryable: false,
  data: { error: { message: 'invalid input error', code: 'Invalid input' } },
  [Symbol(vercel.ai.error)]: true,
  [Symbol(vercel.ai.error.AI_APICallError)]: true

What can I do? thanks