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OpenAI 高性能文本向量模型，3072 维向量输出，适合语义搜索、聚类分析与相似度计算等大规模检索场景。
- Vendor: OpenAI
- Context window: 8.192K tokens
- Official list price: input $0.13 / output $0 per 1M tokens
- Access: OpenAI-compatible API via HefuAI Platform (one key for all models)