A powerful reasoning model excelling at complex, multi-step tasks across math, science, coding, and visual reasoning; succeeded by GPT-5.
Provider
OpenAI
Model Type
text
Context Window
200,000 tokens
1. Advanced reasoning capability
2. Strong performance across domains
3. Visual reasoning support
4. High output capacity
5. Excellent instruction following
6. Large 200K context window
7. Broad API support
8. Positioned as a legacy reasoning model
Appaca is a complete platform for building AI agents, automations, and customer-facing interfaces for o3 apps. No coding required.

Create and style user interfaces for your AI agents and tools easily according to your brand.

Create, manage, and deploy custom AI models for text, image, and audio - trained on your own knowledge base.

Create a workflow for your AI agents and tools to perform tasks and integrations with third-party services.
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Sell your AI agents and tools as a complete product with subscription and AI credits billing. Generate revenue for your busienss.


“I've built with various AI tools and have found Appaca to be the most efficient and user-friendly solution.”

Cheyanne Carter
Founder & CEO, Edubuddy
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