OpenAI o3 & o4-mini: Next-Gen Reasoning Models Now on APIpie
🚀 Now Live on APIpie.ai: OpenAI o3 + o4-mini
We're excited to roll out OpenAI’s most powerful reasoning models to date — available now through APIpie.ai!
🔥 OpenAI o3
• 200K token context
• Full agentic tool use: Python, file analysis, browsing, image generation
• State-of-the-art reasoning across math, science, code, and visual tasks
• 20% fewer real-world errors than o1
⚡ OpenAI o4-mini
• 200K token context
• Optimized for high-throughput, cost-efficient reasoning
• Best performance-to-price model on AIME 2024 & 2025
• Tool-capable, with high-effort variants for complex logic
🧠 What Makes These Models Special
• Trained to reason about when and how to use tools
• Excels in code (SWE-bench, Codeforces), vision (CharXiv, MathVista), science (GPQA)
• Supports complex chains of reasoning + visual understanding
• Safer with reinforced refusal training and new frontier-risk evaluations
🧪 Codex CLI
Terminal-native LLM tool for advanced reasoning workflows.
Pass screenshots, low-res sketches, or code directly to the model.
Open-source now: github.com/openai/codex
Use it with APIpie now by simply changing your ennvironment variables
export OPENAI_BASE_URL="https://apipie.ai/v1"
export OPENAI_API_KEY="your-APIpie-key-here"
🔁 Next Up
• o3-pro coming soon
• Expanded Responses API support for tool calls + reasoning summaries
• Stay tuned for even smarter API routing & live performance benchmarking on APIpie!