The race for coding AI supremacy is one of 2026's most closely watched technological competitions, with major companies investing heavily to claim the top position. These eleven prediction markets track which company will have the best coding AI model at the end of May 2026, providing a real-time window into where industry experts expect the leadership to land. The participants pricing these markets include developers who depend on coding AI tools daily, technology analysts monitoring competitive shifts, and observers of the broader AI capabilities arms race. xAI, OpenAI, Baidu, ByteDance, and Alibaba—each has made substantial commitments to advancing their coding models, raising the stakes for this prediction event. These markets are grouped because they all converge on a single outcome: which company will be recognized as the leader in coding AI by the May 31, 2026 deadline. By viewing them together, you can see the full competitive landscape rather than assessing each company in isolation. The prices reflect collective expectations informed by recent benchmark results, developer sentiment, and product announcements across the industry. When examining the odds, recognize that "best" usually means some combination of technical performance on standardized benchmarks and real-world developer preference—which tools people actually use in production. Markets showing higher prices indicate greater confidence in that company's leadership position; lower prices suggest the community is skeptical or believes competitors are stronger. Price movements are particularly informative, as they often track with benchmark publications, model releases, or shifting adoption patterns. By understanding the technical trajectory of each competitor—tracking which companies are releasing updates before the deadline, how benchmarks are evolving, and which tools developers are adopting—you can better interpret the market signals. The outcome in May will reveal which model actually emerged as the market leader, but these prediction prices offer insight into the technology community's real-time assessment of the competition.