getContextWindowFromModelId (utils/model-info-fetcher.ts)

Utility function to infer model context window size from model ID.

// Source: https://github.com/kevinluosl/deepbot | License: MIT | Copyright 2024 Kevin Luo
// Provided via justclaw.it.com; keep this notice with the code.
/**
 * 模型信息获取工具
 * 
 * 通过模糊匹配推断模型的上下文窗口大小
 */

/**
 * 从模型 ID 推断上下文窗口大小（模糊匹配）
 * 
 * @param modelId - 模型 ID
 * @returns 上下文窗口大小（tokens），未知返回默认值 32000
 */
export function getContextWindowFromModelId(modelId: string): number {
  const lowerModelId = modelId.toLowerCase();

  // Claude 系列
  if (lowerModelId.includes('claude')) {
    return 1000000;
  }

  // OpenAI GPT 系列
  if (lowerModelId.includes('gpt-5.4')) {
    return 1050000;
  }
  if (lowerModelId.includes('gpt-5') && lowerModelId.includes('codex')) {
    return 400000;
  }
  if (lowerModelId.includes('gpt-4o-mini')) {
    return 128000;
  }
  if (lowerModelId.includes('gpt')) {
   

... (truncated -- full source via MCP)