Chat and agents
POST /v1/chat/completions with streaming, tool calling for agents and image inputs for vision.
The all-in-one private AI server: chat, embeddings, images, speech and vision for every app and every desk, from hardware you control.
Run private OpenAI-compatible chat, embedding, image, speech, and vision APIs on your own infrastructure.
AI Server hosts the models once and serves them through familiar OpenAI-compatible endpoints. Every AI Suite app discovers it automatically, and any tool that accepts an OpenAI base URL can use it with an API key.
POST /v1/chat/completions with streaming, tool calling for agents and image inputs for vision.
POST /v1/embeddings for document search, retrieval-augmented generation and classification.
POST /v1/images/generations for text-to-image, image-to-image and inpainting.
Text-to-speech, file transcription and live transcription over WebSocket.
AI Client, AI Suite and the specialist apps find the server and offload their AI work to it.
Official OpenAI SDKs, LangChain, Semantic Kernel, Microsoft Agent Framework and LlamaIndex work unchanged.
Put the models on one capable machine and give everyone else the lightweight AI Client: eleven AI workspaces for chat, writing, documents, translation, images, voice and dictation that use the server instead of each PC’s own hardware. Workstations stay light, models are downloaded once, and the data path stays inside your network.
No multi-gigabyte model copy on every workstation; one server keeps the approved models warm.
Put the GPU in one machine and let laptops and thin desktops use it over the LAN.
Network serving requires API keys that you issue and revoke on your own server.
AI Gateway is a mode of AI Server, not a separate product. It puts one endpoint in front of a pool of AI Server workers, so clients keep a single address while capacity grows.
Requests go to a worker that already has the requested model warm.
A failing worker is retried on a healthy one before the client notices.
Send a consistent slice of traffic to a new model or machine before trusting it fully.
When every worker is saturated, callers get a clear “retry shortly” instead of a timeout.
Drain a worker, upgrade it and return it to the pool while the endpoint keeps serving.
The same server and the same licence key work across every deployment shape.
Install from Microsoft Store and serve your own machine in minutes; turn on network serving with Pro.
Run the softwaretailor/aiserver image with a mounted licence key, health probes and JSON logs.
Deploy with Helm, scale GPU workers separately and route on readiness probes.
Bring-your-own-licence Kubernetes applications in Microsoft Marketplace and AWS Marketplace.
Loopback is free; serving a network is Pro. The server enforces the edition itself, in every deployment shape.
| Capability | Free | Pro Personal | Pro Commercial |
|---|---|---|---|
| Serve AI Suite apps on the same computer | Unlimited | Unlimited | Unlimited |
| Other OpenAI-compatible clients (scripts, chat UIs, IDE plugins) | Rate-limited | Unlimited | Unlimited |
| Serve other devices on your network | — | Yes | Yes |
| Run as a background operating-system service | — | Yes | Yes |
| API keys for network clients | — | Up to 5 | Unlimited |
| Usage analytics | — | Yes | Yes |
| AI Gateway worker pool | — | — | Up to 25 workers, canary rollouts and automatic discovery |
| Rate limits, quotas and budgets, content moderation, audit signing, model lifecycle | — | — | Yes |
| AI Admin Console enrollment | — | — | Yes |
| Use rights | Local use on one computer | Private, household, hobby and educational use | Paid work and use by organisations |
| Price | Free | US$9.99 / month or US$99.99 / year | US$49.99 / month or US$499.99 / year per server node |
Enterprise adds unlimited estates, central entitlement allocation and priority support — talk to us. Prices are in USD before tax.
The organisation places models and inference inside its configured environment. Network, endpoint, identity and model governance remain customer operating responsibilities.
Understand the full data pathAI Server is not a proxy to a cloud API. Models run on your hardware, and requests travel from your apps to your server and back.
Prompts, documents and generated content stay between your clients and your server.
Usage analytics and audit logs record who called which endpoint and when, never the text of a prompt or response.
API keys are issued and revoked on your server, not as accounts in someone else’s cloud.
Activation and periodic licence renewal send the licence key and device identifiers (installation ID, machine ID and a host-name hint), never prompts, files or outputs.
The useful free path has no time limit. Upgrade to Pro only when broader model choice or advanced capabilities earn their place.
Yes. It serves /v1/chat/completions (with streaming, tool calling and vision), /v1/embeddings, /v1/images/generations, /v1/audio/speech, /v1/audio/transcriptions and /v1/models. Point any OpenAI SDK or tool at your server’s base URL and add an API key.
A complete local AI server for your own computer. Every AI Suite app on that computer uses it without limits; other OpenAI-compatible clients are rate-limited. Serving other devices on your network needs Pro.
No. AI Suite and the individual apps have a local AI engine built in. AI Server is for sharing models across several computers, serving AI Client, or calling private models from your own code.
Choose Pro Commercial for paid work or any organisation, with one licence per running server; an AI Gateway in front of them needs no extra licence. One licence key activates every node you have paid for, on Windows, Docker, Kubernetes and the Azure and AWS marketplaces.
No prompt, file or output passes through Software Tailor. Licence activation and renewal send the licence key and device identifiers (installation ID, machine ID and a host-name hint), and usage records are content-free.
Yes. Tools that accept an OpenAI-compatible base URL switch by changing that URL and adding an API key. Download the models you need again from AI Server’s Models page; the free edition lets you try the move on one computer first.
Start on the computer you have to validate the workflow; a CPU works for testing. Add a supported GPU for interactive chat, image and speech at team scale. The deployment planner sizes servers and seats for a workload.
AI Gateway is a mode of AI Server that puts one endpoint in front of several AI Server workers for routing, failover and upgrades. It is included with AI Server and is not a separate product.

Identity, policy and evidence for an AI estate.

One desktop. Eleven private AI tools.

Eleven AI tools. One lightweight client.