Union Alpha

stealth/union-alpha
Chat
Stealth|
Function CallingVision

Union Alpha (stealth/union-alpha) is an AI model from Stealth with a 262,144-token context window and 131,072 max output tokens, priced at $0.00/1M input and $0.00/1M output tokens. Available via the haimaker.ai OpenAI-compatible API.

Context Window
262K
tokens
Max Output
131K
tokens
Input Price
Free
/1M tokens
Output Price
Free
/1M tokens

Overview

Union Alpha is a chat model by Stealth. It supports a 262K token context window. Supports function calling, vision.

Features & Capabilities

Modechat
Context Window262,144 tokens
Max Output131,072 tokens
Function CallingSupported
VisionSupported
ReasoningNot supported
Web SearchNot supported
Url ContextNot supported

API Usage

from openai import OpenAI

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

response = client.chat.completions.create(
    model="stealth/union-alpha",
    messages=[
        {"role": "user", "content": "Hello, how are you?"}
    ],
)

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

Frequently Asked Questions

What is the context window of Union Alpha?

Union Alpha (stealth/union-alpha) has a 262,144-token context window and supports up to 131,072 output tokens per request.

How much does Union Alpha cost?

Union Alpha is priced at $0.00 per 1M input tokens and $0.00 per 1M output tokens when accessed via the haimaker.ai OpenAI-compatible API.

What features does Union Alpha support?

Union Alpha supports function calling, vision.

How do I use Union Alpha via API?

Send requests to https://api.haimaker.ai/v1/chat/completions with model "stealth/union-alpha" using any OpenAI-compatible SDK. Authentication uses a Bearer API key from https://app.haimaker.ai.

Use Union Alpha with the haimaker API

OpenAI-compatible endpoint. Start building in minutes.

Get API Access

haimaker.ai 2026 - All Rights Reserved