O3
OpenAI
openai/o3
Reasoning model, 200K context
Context Window
200K
200,000 tokens
Max Output
100K
100,000 tokens
About this model
Latest reasoning model with improved speed and accuracy
This model supports up to 200K tokens of context. It includes native vision understanding for analyzing images and documents. It excels at complex reasoning, mathematical problems, and multi-step tasks. It provides strong code generation and debugging capabilities.
Access it through Chuizi.AI with a single ck- API key β no separate OpenAI account needed.
Highlights
200K context window
100K max output
Advanced reasoning
Native vision support
Strong code generation
Best For
Complex coding tasksAlgorithm designCode reviewTechnical architecture
2025-04-16
Capabilities
ChatVisionReasoningCodepdftoolscache
Aliases
o3Pricing (per 1M tokens)
| Pricing (per 1M tokens) | / 1M tokens |
|---|---|
| Input / 1M | $2.10 |
| Output / 1M | $8.40 |
| Cache Read | $0.53 |
Final prices shown
Quick Start
main.py
from openai import OpenAI client = OpenAI( base_url="https://api.chuizi.ai/v1", api_key="ck-your-key-here", ) response = client.chat.completions.create( model="openai/o3", messages=[{"role": "user", "content": "Hello!"}], ) print(response.choices[0].message.content)