O3
openai/o3-2025-04-16O3 (openai/o3-2025-04-16) is an AI model from OpenAI with a 200,000-token context window and 100,000 max output tokens, priced at $2.00/1M input and $8.00/1M output tokens. Available via the haimaker.ai OpenAI-compatible API.
Overview
OpenAI's o-series reasoning model that uses chain-of-thought to solve complex problems in science, math, and code.
Features & Capabilities
| Mode | chat |
| Context Window | 200,000 tokens |
| Max Output | 100,000 tokens |
| Function Calling | Supported |
| Vision | Supported |
| Reasoning | Supported |
| Web Search | Supported |
| Url Context | Not 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="openai/o3-2025-04-16",
messages=[
{"role": "user", "content": "Hello, how are you?"}
],
)
print(response.choices[0].message.content)Frequently Asked Questions
What is the context window of O3?
O3 (openai/o3-2025-04-16) has a 200,000-token context window and supports up to 100,000 output tokens per request.
How much does O3 cost?
O3 is priced at $2.00 per 1M input tokens and $8.00 per 1M output tokens when accessed via the haimaker.ai OpenAI-compatible API.
What features does O3 support?
O3 supports function calling, vision, reasoning, web search.
How do I use O3 via API?
Send requests to https://api.haimaker.ai/v1/chat/completions with model "openai/o3-2025-04-16" using any OpenAI-compatible SDK. Authentication uses a Bearer API key from https://app.haimaker.ai.
Use O3 with the haimaker API
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