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KubeAI: AI Inferencing Operator

Get inferencing running on Kubernetes: LLMs, Embeddings, Speech-to-Text.

✅️ Drop-in replacement for OpenAI with API compatibility
⚖️ Scale from zero, autoscale based on load
🧠 Serve text generation models (LLMs, VLMs, etc.)
💬 Speech to Text API
🧮 Embedding/Vector API
🚀 Multi-platform: CPU-only, GPU, TPU
💾 Model caching with shared filesystems (EFS, Filestore, etc.)
🛠️ Zero dependencies (does not depend on Istio, Knative, etc.)
💬 Chat UI included (OpenWebUI)
🤖 Operates OSS model servers (vLLM, Ollama, FasterWhisper, Infinity)
✉ Stream/batch inference via messaging integrations (Kafka, PubSub, etc.)

Quotes from the community:

reusable, well abstracted solution to run LLMs - Mike Ensor

Architecture

KubeAI serves an OpenAI compatible HTTP API. Admins can configure ML models via kind: Model Kubernetes Custom Resources. KubeAI can be thought of as a Model Operator (See Operator Pattern) that manages vLLM and Ollama servers.

Local Quickstart

kubeai-quickstart-demo.mp4

Create a local cluster using kind or minikube.

TIP: If you are using Podman for kind... Make sure your Podman machine can use up to 6G of memory (by default it is capped at 2G):
# You might need to stop and remove the existing machine:
podman machine stop
podman machine rm

# Init and start a new machine:
podman machine init --memory 6144 --disk-size 120
podman machine start
kind create cluster # OR: minikube start

Add the KubeAI Helm repository.

helm repo add kubeai https://www.kubeai.org
helm repo update

Install KubeAI and wait for all components to be ready (may take a minute).

helm install kubeai kubeai/kubeai --wait --timeout 10m

Install some predefined models.

cat <<EOF > kubeai-models.yaml
catalog:
  gemma2-2b-cpu:
    enabled: true
    minReplicas: 1
  qwen2-500m-cpu:
    enabled: true
  nomic-embed-text-cpu:
    enabled: true
EOF

helm install kubeai-models kubeai/models \
    -f ./kubeai-models.yaml

Before progressing to the next steps, start a watch on Pods in a standalone terminal to see how KubeAI deploys models.

kubectl get pods --watch

Interact with Gemma2

Because we set minReplicas: 1 for the Gemma model you should see a model Pod already coming up.

Start a local port-forward to the bundled chat UI.

kubectl port-forward svc/openwebui 8000:80

Now open your browser to localhost:8000 and select the Gemma model to start chatting with.

Scale up Qwen2 from Zero

If you go back to the browser and start a chat with Qwen2, you will notice that it will take a while to respond at first. This is because we set minReplicas: 0 for this model and KubeAI needs to spin up a new Pod (you can verify with kubectl get models -oyaml qwen2-500m-cpu).

Documentation

Checkout our documentation on kubeai.org to find info on:

  • Installing KubeAI in the cloud
  • How to guides (e.g. how to manage models and resource profiles).
  • Concepts (how the components of KubeAI work).
  • How to contribute

Adopters

List of known adopters:

Name Description Link
Telescope Telescope uses KubeAI for multi-region large scale batch LLM inference. trytelescope.ai
Google Cloud Distributed Edge KubeAI is included as a reference architecture for inferencing at the edge. LinkedIn, GitLab
Lambda You can try KubeAI on the Lambda AI Developer Cloud. See Lambda's tutorial and video. Lambda

If you are using KubeAI and would like to be listed as an adopter, please make a PR.

OpenAI API Compatibility

# Implemented #
/v1/chat/completions
/v1/completions
/v1/embeddings
/v1/models
/v1/audio/transcriptions

# Planned #
# /v1/assistants/*
# /v1/batches/*
# /v1/fine_tuning/*
# /v1/images/*
# /v1/vector_stores/*

Immediate Roadmap

  • Model caching
  • LoRA finetuning (compatible with OpenAI finetuning API)
  • Image generation (compatible with OpenAI images API)

NOTE: KubeAI was born out of a project called Lingo which was a simple Kubernetes LLM proxy with basic autoscaling. We relaunched the project as KubeAI (late August 2024) and expanded the roadmap to what it is today.

🌟 Don't forget to drop us a star on GitHub and follow the repo to stay up to date!

KubeAI Star history Chart

Contact

Let us know about features you are interested in seeing or reach out with questions. Visit our Discord channel to join the discussion!

Or just reach out on LinkedIn if you want to connect:

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