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。
✅ 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?
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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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