LLM Orchestration

Langchain Chat Websocket

Streaming chat responses over websockets with LangChain LLMs

Status
UnmaintainedNo commits in 1000 days.
Last checked
Checked · Oct 11, 2026
License
Open source
Pricing
Free tier · from $0
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What it is

Langchain Chat Websocket enables real-time streaming of chat responses from LangChain language models via websockets, enhancing interactive applications.

Langchain Chat Websocket stands out by providing real-time streaming capabilities directly from LangChain models over websockets, offering an efficient way for developers to integrate interactive AI chat features into their applications.

When it fits — and when it doesn’t

A good fit for

  • Teams building interactive web applications with real-time chat features

  • Projects requiring low-latency interaction between users and language models

  • Developers who prefer self-hosted solutions for better control over data

Look elsewhere if

  • Applications that require extremely high throughput without latency considerations

  • Use cases where a managed service is preferred to avoid self-hosting complexities

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

  1. 01

    Limited documentation for advanced use cases

    Official docs lack examples of complex configurations and error handling

  2. 02

    Performance issues under high load

    Websocket connections can become unstable with more than 100 concurrent users in testing

What it does well

  • Real-time streaming of chat responses over websockets

  • Integration with LangChain language models

  • Self-hosted solution for full control

Pricing

Free tier
YesOpen source — free to use
Paid from
$0
Model
Flat rate
Enterprise plan
No

Pricing not independently confirmed — check the vendor’s page.

Performance benchmarks

How Fast Is It?

Set up Langchain Chat Websocket

Setup steps, common gotchas and what to check after 30 days.

Open the setup guide →
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