UI-TARS 7B
UI-TARS 7B (ByteDance, 2025) is an image-generation model. UI-TARS-1.5 is a multimodal vision-language agent optimized for GUI-based environments, including desktop interfaces, web browsers, mobile systems, and games. Built by ByteDance, it builds upon the UI-TARS framework with reinforcement...
by ByteDance · 128K token context window
Best for
- image generation from text
- creative design and ideation
Ways to use UI-TARS 7B in osFoundry
Connect with your own key (BYOK)
Open the key dialog and paste your ByteDance API key. osFoundry discovers UI-TARS 7B automatically — assign it to a Maestro role (router, direct, orchestrator, or fallback) in the Pipeline tab and it is live in every chat. Your key, your provider account — no token markup.
Use it in a Room App
Room Apps declare AI features in their manifest, then call them with invokeAI:
import { invokeAI } from '@osfoundry/app-sdk'
// 'summarize' is an AI feature declared in your app manifest.
const result = await invokeAI('summarize', userText)
Call it from your own apps
Once a model is wired into your workspace you can host it as an API and reach it from your own services, scripts, or CI — outside osFoundry.
Run UI-TARS 7B yourself
UI-TARS 7B is also available as open weights — self-host it for full data control and no per-token cost. See that page for GPU requirements and a cost comparison against API pricing.
UI-TARS 7B vs similar models
Licence
Hosted — usage subject to provider terms — Hosted-only model — usage governed by the provider's API terms. Bring your own provider key.
No weights distributed; usage subject to provider terms.
Frequently asked about UI-TARS 7B
How much does UI-TARS 7B cost?
UI-TARS 7B is metered at $ 0.100 /1M for input, and $ 0.200 /1M for output. Bring your own ByteDance API key — osFoundry passes through provider pricing without markup.
Can I use UI-TARS 7B commercially?
Commercial use is allowed with conditions. Hosted-only model — usage governed by the provider's API terms. Bring your own provider key. No weights distributed; usage subject to provider terms.
What is the context window of UI-TARS 7B ?
UI-TARS 7B supports a 128K token context window.
Can I run UI-TARS 7B locally?
No — UI-TARS 7B is hosted only and accessed via the ByteDance API. An open-weights equivalent is available to self-host — see the cross-link above.
What is UI-TARS 7B best at?
UI-TARS 7B is well-suited to image generation from text, creative design and ideation.
How do I use UI-TARS 7B in osFoundry?
Paste your ByteDance API key in the key dialog (or deploy the open weights for self-hostable models), assign UI-TARS 7B to a Maestro role in the Pipeline tab, then use it in chat, Room Apps via invokeAI, or your own apps.
Published by ByteDance on July 22, 2025. Source: https://openrouter.ai/bytedance/ui-tars-1.5-7b