Can OpenAI's GPT-5.6 Overturn Anthropic's Lead in the AI Cost-Efficiency War?

OpenAI's GPT-5.6 is shaking up the AI market once again. Amid a trend where Anthropic dominated by capturing 40% of the coding agent market and enterprise LLM spending, OpenAI's GPT-5.6 has emerged. This week on O-Graph, we analyzed through five graphs how AI has surpassed human programmers in top-tier coding competitions like the AtCoder World Tour Finals and the ICPC, and how GPT-5.6 is disrupting Anthropic's dominance in the coding market. Armed with token cost-efficiency, can OpenAI's GPT-5.6 and Elon Musk's Grok 4.5 emerge victorious in this cost-efficiency war?

(Reported by An Hyemin | Filmed by Park Woo-jin and Cha Seung-hwan | Edited by Lee Ki-eun | Designed by Ahn Jun-seok, Intern Shin Yeon-sung | Produced by Knowledge Contents IP Team)