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Polygres

面向检索增强生成的 Postgres 扩展,提供图检索、多路融合检索与 token 预算控制,可自托管。

★★★★☆ 4 Freemium (Self-hosted free / Managed $16–$4,096/mo)

优点与优势 (Pros)

  • pgGraph 图检索引擎
  • pgContext 十路融合检索
  • 混合检索 + 上下文组装
  • Token 预算控制
  • 无额外基础设施

缺点与限制 (Cons)

💰 价格方案 (Pricing)

Freemium (Self-hosted free / Managed $16–$4,096/mo)

价格详情收集自公开渠道,可能存在变动。请访问官方网站以获取实时最新价格。

最后更新:2026 年 7 月 · 9bests 编辑评测

谁适合使用 Polygres

  • pgGraph 图检索引擎
  • pgContext 十路融合检索
  • 混合检索 + 上下文组装
  • Token 预算控制
  • 无额外基础设施

⚠️ 谁可能需要再考虑

🎯 常见使用场景

网页抓取与提取

构建 AI 数据管道

数据清洗与富化

⚖️ Polygres 对比 Crawl4AI

Polygres Crawl4AI
评分 4/5 4.3/5
价格 Freemium (Self-hosted free / Managed $16–$4,096/mo) Free (Open Source)
核心优势 pgGraph 图检索引擎 LLM 优先的输出格式

查看完整对比:Polygres 对比 Crawl4AI

❓ 常见问题

Polygres 免费吗?

+

Polygres 提供免费方案(Freemium (Self-hosted free / Managed $16–$4,096/mo))。付费版可解锁更高额度与高级功能。

Polygres 最适合做什么?

+

Polygres 最适合pgGraph 图检索引擎以及pgContext 十路融合检索。面向检索增强生成的 Postgres 扩展,提供图检索、多路融合检索与 token 预算控制,可自托管。

Polygres 和 Crawl4AI 有什么区别?

+

Polygres(4/5)与 Crawl4AI(4.3/5)需求重叠。Polygres 在pgGraph 图检索引擎上更突出,而 Crawl4AI 擅长LLM 优先的输出格式。请根据你的优先项选择。

🔄 Polygres 的最佳替代方案

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