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bytedance/ui-tars-1.5-7b

bytedance/ui-tars-1.5-7b

Release date: 2025-07-23

128,000 context · $0.10/M input tokens · $0.20/M output tokens

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

Pay-per-use

No upfront costs, pay only for what you use

Input$0.10 / M Tokens
Output$0.20 / M Tokens
Cache Read$0.10 / M Tokens

Try the model

bytedance/ui-tars-1.5-7b
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Hi! I am a helpful AI assistant. What can I do for you?
Ready to use this model in a local coding agent?Agent setup

API Usage

Use the following code examples to integrate with our API:

import OpenAI from 'openai';

if (!process.env.WAVESPEED_API_KEY) throw new Error('Set WAVESPEED_API_KEY');
const client = new OpenAI({
  apiKey: process.env.WAVESPEED_API_KEY,
  baseURL: 'https://llm.wavespeed.ai/v1',
  timeout: 120_000,
  maxRetries: 2,
});

try {
  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 ?? '');
} catch (error) {
  console.error('LLM request failed:', error);
  process.exitCode = 1;
}

Model Introduction

Bytedance ui-tars-1.5-7b

bytedance ui-tars-1.5-7b


Why It Looks Great

  • Large Language Model architecture for efficient processing
  • 128000 context window for long document handling
  • Competitive pricing at $0.1/$0.2 per million tokens

Key Features

  • Context Window: 128000 tokens
  • Max Output: 2048 tokens
  • Vision: Supported
  • Function Calling: Supported

Specifications

SpecificationValue
ProviderBytedance
Model TypeLarge Language Model (LLM)
ArchitectureN/A
Context Window128000 tokens
Max Output2048 tokens
InputText
OutputText
VisionSupported
Function CallingSupported

Pricing

Token TypeCost per Million Tokens
Input$0.1
Output$0.2

How to Use

  1. Write your prompt — describe the task, provide context, and specify desired output format.
  2. Submit — the model processes your request and returns the response.

API Integration

Base URL: https://llm.wavespeed.ai/v1 API Endpoint: chat/completions Model ID: bytedance/ui-tars-1.5-7b


API Usage

Python SDK

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://llm.wavespeed.ai/v1"
)

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

print(response.choices[0].message.content)

cURL

curl https://llm.wavespeed.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "bytedance/ui-tars-1.5-7b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Notes

  • Model: bytedance/ui-tars-1.5-7b
  • Provider: Bytedance

Info

Providerdoubao
Typellm

Supported Functionality

Input
TextImage
Output
Text
Context128,000
Max Output2,048
Vision✓ Supported
Function Calling-

API Access Guide

Base URLhttps://llm.wavespeed.ai/v1
API Endpointchat/completions
Model IDbytedance/ui-tars-1.5-7b

Ui Tars 1.5 7b API

bytedance/ui-tars-1.5-7b

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...

Input

$0.1 /M

Output

$0.2 /M

Context

128K

Max Output

2K

Vision

Supported

Try Ui Tars 1.5 7b on WaveSpeedAI

Access Ui Tars 1.5 7b through our unified API — OpenAI-compatible, no cold starts, transparent pricing.

Frequently Asked Questions about Ui Tars 1.5 7b

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

Pricing on WaveSpeedAI: $0.10 per million input tokens and $0.20 per million output tokens. Prompt caching and batch processing are billed separately and reduce effective cost on long, repetitive workloads.

What is the context window of Ui Tars 1.5 7b?+

Ui Tars 1.5 7b supports up to 128K tokens of context with up to 2K tokens of output per request.

Is Ui Tars 1.5 7b OpenAI-compatible?+

WaveSpeedAI exposes Ui Tars 1.5 7b at https://llm.wavespeed.ai/v1 through the OpenAI-compatible Chat Completions interface. Most OpenAI SDK clients work by changing the base URL and API key; optional fields depend on the selected model.

How do I get started with Ui Tars 1.5 7b?+

Sign in to WaveSpeedAI, create an API key in Access Keys, then send a request to https://llm.wavespeed.ai/v1/chat/completions with the model id shown above. Check the current model catalog for availability, capabilities, and pricing.

Related LLM APIs

UI Tars 1.5 7b | ByteDance LLM API | WaveSpeedAI