Mintplex-Labs/anything-llm · error · Error

OpenAI chat: is not valid for chat completion!

Error message

OpenAI chat: ${this.model} is not valid for chat completion!

What it means

Pre-flight guard in OpenAiLLM.getChatCompletion: the configured model failed the valid-model check against OpenAI's known models, so the request is rejected before calling the API with a model OpenAI would refuse.

Solutions

1. Select an OpenAI model valid for chat completion (e.g. gpt-4o).

When it happens

Trigger: Thrown when the configured OpenAI model is not a chat model.

Common situations: Model preference set to an invalid or non-chat model.

AI-assisted analysis of Mintplex-Labs/anything-llm@3aec848f28 (2026-08-18). Data as JSON: /api/errors/28909f92f1139535. Report an issue: GitHub.

Appendix: source

Thrown at server/utils/AiProviders/openAi/index.js:150

   * @param {string} modelName
   * @param {number} temperature
   * @returns {number}
   */
  #temperature(modelName, temperature) {
    // For models that don't support temperature
    // OpenAI accepts temperature 1
    const NO_TEMP_MODELS = ["o", "gpt-5"];

    if (NO_TEMP_MODELS.some((prefix) => modelName.startsWith(prefix))) {
      return 1;
    }

    return temperature;
  }

  async getChatCompletion(messages = null, { temperature = 0.7 }) {
    if (!(await this.isValidChatCompletionModel(this.model)))
      throw new Error(
        `OpenAI chat: ${this.model} is not valid for chat completion!`
      );

    const result = await LLMPerformanceMonitor.measureAsyncFunction(
      this.openai.responses
        .create({
          model: this.model,
          input: messages,
          store: false,
          temperature: this.#temperature(this.model, temperature),
        })
        .catch((e) => {
          throw new Error(e.message);
        })
    );

    if (!result.output.hasOwnProperty("output_text")) return null;

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