vercel/ai · error · InvalidArgumentError

Model '${this.modelId}' does not support streaming transcrip

Error message

Model '${this.modelId}' does not support streaming transcription. Use a live model such as 'gemini-3.5-transcribe-live'.

What it means

Error "Model '${this.modelId}' does not support streaming transcription. Use a live model such as 'gemini-3.5-transcribe-live'." thrown in vercel/ai.

Source

Thrown at packages/google-vertex/src/gemini-transcription/google-vertex-gemini-transcription-model.ts:266

        body: rawResponse,
      },
      ...(response.usageMetadata != null
        ? {
            providerMetadata: {
              google: { usageMetadata: response.usageMetadata as JSONObject },
            },
          }
        : {}),
    };
  }

  async doStream(
    options: TranscriptionModelV4StreamOptions,
  ): Promise<
    Awaited<ReturnType<NonNullable<TranscriptionModelV4['doStream']>>>
  > {
    if (!isLiveTranscriptionModelId(this.modelId)) {
      throw new InvalidArgumentError({
        argument: 'modelId',
        message:
          `Model '${this.modelId}' does not support streaming transcription. ` +
          `Use a live model such as 'gemini-3.5-transcribe-live'.`,
      });
    }

    const currentDate = this.config._internal?.currentDate?.() ?? new Date();
    const warnings: SharedV4Warning[] = [];
    const googleOptions = await this.parseOptions(options.providerOptions);

    validateLiveInputAudioFormat(options.inputAudioFormat);

    // Vertex Live authenticates with the same OAuth Bearer header the HTTP
    // surface uses; a header-capable WebSocket implementation (e.g. `ws`) is
    // required to send it.
    const headers = combineHeaders(
      this.config.headers ? await resolve(this.config.headers) : undefined,

View on GitHub (pinned to 69428b1f8b)

When it happens

Trigger: Thrown at packages/google-vertex/src/gemini-transcription/google-vertex-gemini-transcription-model.ts:266 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of vercel/ai@69428b1f8b (2026-08-30). Data as JSON: /api/errors/bee0ca84916f32c6. Report an issue: GitHub.