Why is OpenAI so much more efficient?

Summary

The discussion centers on the efficiency of large language models, particularly for code generation, comparing models like Gemini and Opus 4/8 against OpenAI's offerings. While Fable is considered the most capable, OpenAI's models stand out for their impressive capabilities achieved with significantly smaller token budgets, implying a need to understand their underlying methods for more efficient AI development. The practical takeaway is that OpenAI's approach to reasoning budgets and agent browser integration offers valuable lessons for creating more effective AI.