How much does Ui Tars 1.5 7b cost?

Ui Tars 1.5 7b costs $0.1000 per 1M input tokens and $0.2000 per 1M output tokens on BazaarLink. No markup over provider pricing.

What is Ui Tars 1.5 7b's context window?

Ui Tars 1.5 7b supports a 128K token (128,000) context window.

Does Ui Tars 1.5 7b support tool calling / function calling?

Tool calling support for Ui Tars 1.5 7b depends on the provider's current capabilities. See /docs/api for the definitive supported-parameters list per model.

Can I send images to Ui Tars 1.5 7b?

Yes, Ui Tars 1.5 7b accepts image inputs alongside text. Use the standard OpenAI multimodal message format with image_url content parts.

Is Ui Tars 1.5 7b free on BazaarLink?

Ui Tars 1.5 7b is a paid model. BazaarLink offers a free tier on other models — see /free for the current free-tier model list.

Who provides Ui Tars 1.5 7b?

Ui Tars 1.5 7b is provided by bytedance. BazaarLink routes requests to bytedance's production inference infrastructure without modification to the request or response format.

How does Ui Tars 1.5 7b compare to other models?

See /models for a side-by-side table of all major models BazaarLink supports, filterable by price, context length, and capabilities.

Can I use Ui Tars 1.5 7b with LangChain or Vercel AI SDK?

Yes. Both LangChain (via ChatOpenAI with base_url) and Vercel AI SDK (via @ai-sdk/openai with baseURL) work out of the box — just use "bytedance/ui-tars-1.5-7b" as the model identifier.

Ui Tars 1.5 7b

Name: Ui Tars 1.5 7b API
Brand: bytedance

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...

Pricing

Input Price

$0.1000

/ 1M tokens

NT$ 3.16

Output Price

$0.2000

/ 1M tokens

NT$ 6.32

Context Window

128K

tokens

💱 匯率 USD/NTD = 31.60 · 不含稅 · 更新於 2026/06/15

Provider	bytedance
Released	2025年7月
Model ID	`bytedance/ui-tars-1.5-7b`

Technical specifications

Context window

128K tokens

Reasoning

Input

ImageText

Output

Text

Quick Start

Use Ui Tars 1.5 7b via BazaarLink API — just change the base_url:

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://bazaarlink.ai/api/v1",
    api_key="sk-bl-YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="bytedance/ui-tars-1.5-7b",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://bazaarlink.ai/api/v1",
  apiKey: "sk-bl-YOUR_API_KEY",
});

const response = await client.chat.completions.create({
  model: "bytedance/ui-tars-1.5-7b",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use Ui Tars 1.5 7b via BazaarLink?

✓USD billing (TWD-quoted) + unified invoices — no foreign credit card needed for Taiwan teams
✓OpenAI-compatible API — zero code changes required
✓Automatic failover — multi-provider redundancy for the same model
✓Chinese-language support — local team, instant help

Try Now ← All Models

Frequently Asked Questions

What is Ui Tars 1.5 7b?

How much does the Ui Tars 1.5 7b API cost?

Ui Tars 1.5 7b costs $0.1000 per 1K input tokens and $0.2000 per 1K output tokens when accessed through BazaarLink.

How do I use Ui Tars 1.5 7b with the OpenAI SDK?

Set base_url to "https://bazaarlink.ai/api/v1" and use model ID "bytedance/ui-tars-1.5-7b". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for Ui Tars 1.5 7b?

Ui Tars 1.5 7b supports a context window of 128,000 tokens.

Is Ui Tars 1.5 7b available for free?

Ui Tars 1.5 7b is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

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