Unverified50% confidenceFactExact time
Connecting an open-source model to the Retell Custom LLM slot requires only a bridge service of about 90 lines.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/14/2026
First Seen
Valid until: 1/12/2027
Sources
Related Entities
Related Claims
UnverifiedMainstream open-source solutions for LLM Gateways include LiteLLM and PortKey, with core features covering multi-model routing and failover, rate limiting and circuit breaking, request retry, cost tracking, and load balancing.63% similarUnverifiedWhen using the Custom LLM approach, you must host the WebSocket server yourself on the call's critical path; the server should be as close to Retell's region as possible to control additional latency, and you should test it in practice before deployment.60% similarUnverifiedThe advantage of the LLM Gateway approach is that trace data can be obtained without modifying business code, while the disadvantage is that the gateway becomes a new critical path, introducing risks of latency, availability, and vendor lock-in.60% similarUnverifiedLLM服务中灰度发布通常通过API网关层的流量分割实现，例如将5%请求路由至新模型，95%保持原模型59% similar
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