plano/docs/source/resources/tech_overview/model_serving.rst
2025-12-23 17:14:50 -08:00

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.. _bright_staff:
Bright Staff
============
Bright Staff is Plano's memory-efficient, lightweight controller for agentic traffic. It sits inside the Plano
data plane and makes real-time decisions about how prompts are handled, forwarded, and processed.
Rather than running a separate "model server" subsystem, Plano relies on Envoy's HTTP connection management
and cluster subsystem to talk to different models and backends over HTTP(S). Bright Staff uses these primitives to:
* Inspect prompts, conversation state, and metadata.
* Decide which upstream model(s), tool backends, or APIs to call, and in what order.
* Coordinate retries, fallbacks, and traffic splitting across providers and models.
Plano is designed to run alongside your application servers in your cloud VPC, on-premises, or in local
development. It does not require a GPU itself; GPUs live where your models are hosted (third-party APIs or your
own deployments), and Plano reaches them via HTTP.
.. image:: /_static/img/plano-system-architecture.png
:align: center
:width: 40%