Pricing, Performance & Features Comparison
GPT-5.3-Codex is OpenAI's most capable agentic coding model, combining frontier coding performance with the reasoning and professional knowledge capabilities of GPT-5.2 in a single model that is 25% faster than GPT-5.2-Codex. It is designed to handle long-running tasks involving research, tool use, and complex execution, enabling it to perform nearly any task a professional can do on a computer, from debugging and deployment to creating spreadsheets and presentations.
Kimi K2.5 is Moonshot's most intelligent and versatile model to date, featuring a native multimodal architecture that supports both visual and text input alongside thinking and non-thinking modes. It achieves state-of-the-art performance in coding, reasoning, and Agent tasks, utilizing a 256K context window to solve complex logical and mathematical problems.