o3‑Pro:
Advanced Reasoning
Meets Multimodal Intelligence
A next‑level GPT agent for step‑by‑step logic, code execution, image reasoning, and file analysis via API.
o3‑Pro: Deep Thought
Meets Practical Application
o3‑Pro builds on the capabilities of the base o3 model with stronger internal reasoning and tool use. It supports text and image input, Python execution, file uploads, and web browsing (depending on environment). Unlike lightweight models, o3‑Pro is optimized for high-quality logic and research-grade output, including STEM benchmarks like AIME and GPQA.
Reasoning through Reflection
Enhanced chain‑of‑thought internal logic minimizes errors and boosts accuracy in multi‑step tasks. Expert evaluations consistently prefer o3‑Pro over o3.
Multimodal Intelligence
Built‑in support for vision input and file analysis. Handles image understanding (OCR, VQA), Python execution, and web tools with precision.
Domain Excellence
Leading performance on STEM benchmarks: best-in-class on AIME 2024, AIME 2025, and GPQA Diamond. Surpasses peers on scientific, coding, and business tasks.
Scale Enterprise Workflows with o3‑Pro
Optimize Technical, Creative, and Research Pipelines
Software Engineering & Code
Automate code generation, debugging, and file inspection using Python and tool integration.
Image-Based Analysis
Leverage vision input for OCR, defect detection, or logical image queries in a single prompt.
Complex Math & Science
Solve multi‑step equations, interpret graphs, and generate scientific insights with high precision.
Technical Comparison
From structured reasoning to document-level precision, o3‑Pro brings distinct strengths across enterprise and logic-intensive tasks.
o3‑Pro vs GPT‑4o
Claude 4 Opus delivers elegant, humanlike writing and excels in creative or conversational tasks. By contrast, o3‑Pro is more utilitarian—optimized for rigorous logic, precise analysis, and highly deterministic outputs, making it a better fit for technical, legal, or data-intensive workflows.
Learn more about GPT-4o API.
o3‑Pro vs Claude 4 Opus
Claude 4 Opus delivers elegant, humanlike writing and excels in creative or conversational tasks. By contrast, o3‑Pro is more utilitarian—optimized for rigorous logic, precise analysis, and highly deterministic outputs, making it a better fit for technical, legal, or data-intensive workflows.
Learn more about Claude 4 Opus.
o3‑Pro vs Gemini 2.5 Pro
Gemini 2.5 Pro offers robust multimodal functionality and rapid responses across diverse streaming inputs. However, experts note that o3‑Pro surpasses it in “structured analysis, argumentation, and reliable reasoning”—especially for in-depth tasks like legal briefs, scientific reports, or long-form business strategy.
Learn more about Gemini 2.5 Pro API.
Why Choose AI/ML API solution?
AI/ML API provides scalability, faster deployment, and access to 200+ advanced machine learning models without the need for extensive in-house expertise or infrastructure.
Easy To Use
Our API allows seamless integration of powerful AI capabilities into your applications, regardless of your coding experience. Simply swap your API key to begin using the AI/ML API.
Scalable
AI/ML API provides flexibility for business growth since you can scale resources by purchasing more tokens as needed, ensuring optimal performance and cost efficiency
Affordable
We offer flat, predictable pricing, payable by card or cryptocurrency, keeping it the lowest on the market and affordable for everyone.
import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.aimlapi.com",
api_key="<YOUR_API_KEY>",
)
response = client.responses.create(
model="openai/o3-pro",
input="Write a one-sentence bedtime story about a unicorn."
)
print(response.output_text)Getting started with
Claude 4 by Anthropic
Visit AI Playground to quickly try o3‑Pro.
For more information about technical features, please refer to o3‑Pro documentation page.