# Open WebUI

Source: https://calc.onpremeasy.com/product/open-webui/

## Indicative from-price range

Indicative from-price range for self-hosting Open WebUI on 1 server: about $24 to $112 per month (USD), as of 2026-10-19, for the reference workload (Peak active users: 10; RAG or document search enabled: no; Model backend mode: local-ollama). From-price by provider, each the cheapest server in that provider's own shortlist: $24 on DigitalOcean (basic-2vcpu-4gb, 2 vCPU, 4 GB RAM, fra1); $49 on Google Cloud (e2-standard-2, 2 vCPU, 8 GB RAM, us-central1); $63 on Amazon Web Services (c9g.large, 2 vCPU, 4 GB RAM, us-east-1); $64 on OVHcloud (rise-1, 6 vCPU, 32 GB RAM, eu-west); $66 on Microsoft Azure (D2as_v7, 2 vCPU, 8 GB RAM, eastus); $66 on Hetzner (AX41, 6 vCPU, 64 GB RAM, eu-central); $262 on Servers.com (dl-01, 8 vCPU, 64 GB RAM, eu-west).

Reference workload:
- Peak active users: 10
- RAG or document search enabled: no
- Model backend mode: local-ollama

Price snapshot: 2026-10-19. Currency: USD. FX snapshot: 2026-10-19.

Configuration: Low end: 1 x basic-2vcpu-4gb (DigitalOcean, 2 vCPU, 4 GB RAM, about $24 per server per month). High end: 1 x rise-m (OVHcloud, 12 vCPU, 64 GB RAM, about $112 per server per month).

Methodology: This range is generated automatically from public provider price lists. It has not been reviewed by a person, it is not a quote, and it may differ from the total the calculator chooses for your own workload with its AI step. Method: the calculator's offer shortlist for the reference workload (the same ranking it builds before the AI step, up to 12 offers across providers; 12 here) is priced at its monthly list price in USD. The low end is the cheapest of the per-provider from-prices below and the high end is the median server of the combined shortlist, each multiplied by 1, the smallest baseline topology (single-node-ui). The from-price for each provider applies the same method to that provider's own shortlist (the calculator's ranking restricted to that provider), so it is the cheapest server that ranking offers there, not a recommendation. Prices are taken from the price snapshot dated 2026-10-19; prices quoted in EUR are converted with the ECB reference rate dated 2026-10-19. Servers with fewer than 2 vCPU or less than 4 GB RAM are not priced. Only server rental list prices for the product's own servers are counted: dependencies, licences, support, traffic charges, taxes and setup fees are not included.

Price sources:
- [Amazon Web Services](https://pricing.us-east-1.amazonaws.com/offers/v1.0/aws/AmazonEC2/current/us-east-1/index.json)
- [DigitalOcean](https://www.digitalocean.com/pricing/droplets)
- [Google Cloud](https://cloudbilling.googleapis.com/v1/services/6F81-5844-456A/skus)
- [Hetzner](https://www.hetzner.com/_resources/app/data/app/live_data_en_EUR.json)
- [Microsoft Azure](https://prices.azure.com/api/retail/prices)
- [OVHcloud](https://eu.api.ovh.com/1.0/order/catalog/public/eco?ovhSubsidiary=FR)
- [Servers.com](https://www.servers.com/products/scalable-bare-metal)

Open WebUI is a self-hosted, extensible web front end for interacting with local and cloud LLM backends such as Ollama or OpenAI-compatible APIs, adding chat history, user management, and plugin-style tools on top of the model connection.

## What gets deployed with it

- Ollama (required): First dependency target for local model inference. Maps user concurrency to inference session demand.

## Baseline topologies

- single-node-ui: 1 node minimum; roles: open-webui

## What drives the cost

- Peak active users: Peak users actively sending chat messages or document queries at the same time.

## Frequently asked questions

### How much does it cost to self-host Open WebUI?

Indicative from-price range for self-hosting Open WebUI on 1 server: about $24 to $112 per month (USD), as of 2026-10-19, for the reference workload (Peak active users: 10; RAG or document search enabled: no; Model backend mode: local-ollama). From-price by provider, each the cheapest server in that provider's own shortlist: $24 on DigitalOcean (basic-2vcpu-4gb, 2 vCPU, 4 GB RAM, fra1); $49 on Google Cloud (e2-standard-2, 2 vCPU, 8 GB RAM, us-central1); $63 on Amazon Web Services (c9g.large, 2 vCPU, 4 GB RAM, us-east-1); $64 on OVHcloud (rise-1, 6 vCPU, 32 GB RAM, eu-west); $66 on Microsoft Azure (D2as_v7, 2 vCPU, 8 GB RAM, eastus); $66 on Hetzner (AX41, 6 vCPU, 64 GB RAM, eu-central); $262 on Servers.com (dl-01, 8 vCPU, 64 GB RAM, eu-west). This is an automatically generated indicative figure from public price lists (price snapshot 2026-10-19), not a quote.

### What drives the cost of self-hosting Open WebUI?

The sizing inputs the calculator uses for Open WebUI are: Peak active users. Cost also depends on the number of servers and the provider chosen.

### What is the minimum number of servers for Open WebUI?

The smallest baseline topology in the calculator's profile for Open WebUI is single-node-ui (1 server). The reference range above is computed for 1 server.

Size Open WebUI for your own workload: https://calc.onpremeasy.com/?product=open-webui

## Sources

- https://openwebui.com/
- https://docs.openwebui.com/
- https://github.com/open-webui/open-webui