Mintplex-Labs/anything-llm · error · Error

OpenRouter chat: is not valid for chat completion!

Error message

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

What it means

Pre-flight guard in OpenRouterLLM.getChatCompletion: the selected model is not in OpenRouter's valid model list (fetched/cached at construction), so a completion call would target an unavailable model and is rejected up front.

Solutions

1. Select an OpenRouter model valid for chat completion.

When it happens

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

Common situations: Model preference set to an invalid model id.

AI-assisted analysis of Mintplex-Labs/anything-llm@f92433b4ea (2026-08-18). Data as JSON: /api/errors/fafb11d832547952. Report an issue: GitHub.

Appendix: source

Thrown at server/utils/AiProviders/openRouter/index.js:255

    attachments = [],
  }) {
    const prompt = {
      role: "system",
      content: `${systemPrompt}${this.#appendContext(contextTexts)}`,
    };
    return [
      prompt,
      ...formatChatHistory(chatHistory, this.#generateContent),
      {
        role: "user",
        content: this.#generateContent({ userPrompt, attachments }),
      },
    ];
  }

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

    const result = await LLMPerformanceMonitor.measureAsyncFunction(
      this.openai.chat.completions
        .create({
          model: this.model,
          messages,
          temperature,
          // This is an OpenRouter specific option that allows us to get the reasoning text
          // before the token text.
          include_reasoning: true,
          ...serviceTierParam(this.serviceTier, this.log.bind(this)),
          user: user?.id ? `user_${user.id}` : "",
        })
        .catch((e) => {
          throw new Error(e.message);
        })

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