Ray Serve

Open scalable model-serving framework for Python applications and distributed inference

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PricingFree
Starting price$0
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentHybrid
Last verifiedAugust 3, 2026
Overview

Tool overview

Ray Serve is listed under AI Infrastructure & MLOps AI tools.

Summary

What is Ray Serve?

Ray Serve is the open model-serving library in Ray. It deploys Python and machine-learning applications from a laptop to multi-node clusters or Kubernetes, with autoscaling, batching, model composition, HTTP serving, monitoring, and managed Anyscale options.

Best fit

Best for

Developers deploying scalable Python and machine-learning services

Audience

Who is it for?

ML engineersPlatform teamsInference engineersPython developers
Recommendation

Decision note

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Capabilities

Key features

Python deployments and application composition

Autoscaling, batching, and model multiplexing

HTTP serving and deployment handles

Local, VM, Kubernetes, and Anyscale deployment

Workflows

Use cases

Serve online inference

Compose multiple models

Deploy Python services

Scale LLM applications

Strengths

Pros

  • Apache-2.0 open-source framework
  • Runs locally and on Kubernetes
  • Managed Anyscale option is available
Considerations

Limitations

Serving reliability and latency depend on model code, resources, autoscaling, networking, and dependencies.

Teams must test failure recovery, concurrency, request validation, observability, security, and model licenses.

Cost

Pricing details

Pricing modelFree
Starting price$0
Free planYes
Free trialYes
Pricing context

Billing options

Free open sourceAnyscale pay-as-you-goCommitted contract
Pricing context

Pricing note

Ray Serve is free under Apache-2.0. Managed Anyscale is billed by compute usage and offers $100 in introductory credits; Hosted and BYOC commercial terms are separate from the open-source framework.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

FastAPI

ASGI

KubeRay

Anyscale

PyTorch

TensorFlow

Specs

Technical details

PlatformsWeb, Desktop
Multilingual supportYes
Login requiredYes
Open sourceYes
LicenseApache-2.0
DeploymentHybrid
CompanyRay Project / Anyscale
Current version2.56.0
Models / versionsServe deployments Serve applications DeploymentHandle RayService
Editions / plansRay Serve OSS Anyscale Hosted Anyscale BYOC
Data confidenceHigh
Last verifiedAugust 3, 2026
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Answers

Frequently asked questions

Ray Serve is the open model-serving library in Ray. It deploys Python and machine-learning applications from a laptop to multi-node clusters or Kubernetes, with autoscaling, batching, model composition, HTTP serving, monitoring, and managed Anyscale options.
Developers deploying scalable Python and machine-learning services
The listed pricing model for Ray Serve is free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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