Semantic Router
A Python library that routes AI requests to tools or handlers using embedding similarity and example utterances.
About Semantic Router
AI application developers need to choose tools and handlers without asking a generative model to make every routing decision.
Who it’s for
- Developers building tool-using AI applications
- Teams defining intent routes for assistants
When to consider it
Consider Semantic Router when you want to define routing decisions with example utterances and embedding encoders.
Tradeoffs & limitations
- MIT licensed. The stable 0.x line receives only bug fixes after 0.2.0; the 1.x line is a breaking rewrite still in development.
SOTA overview · Documentation-based assessment · Sources & review method
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Sources & review method
Documentation-based assessment · Oct 13, 2026 · Prepared with AI assistance; not a hands-on benchmark.
- Semantic Router official product overview
- Routing examples and release-line constraints
- MIT license
- Release-line maintenance commit — September 29, 2026
- Product icon in the official repository README banner
Checked by SOTA · AI-assisted documentation review. Selection advice is our assessment; verify current requirements for your deployment.
Import history & original evidence
Semantic Router official website
A Python library that routes AI requests to tools or handlers using embedding similarity and example utterances.
Based on official pages and announcements checked on 2026-10-13. No hands-on test, performance benchmark or popularity ranking is claimed.
