Which company has the best Code Arena WebDev AI model end of July?: how this market works

What you need to know

This market asks a simple question: which AI company will have the top-ranked model on a specific web development coding leaderboard at the end of July 2026? The leaderboard, called Code Arena WebDev, ranks AI models by how well they build and write code for websites and web apps. A win for Moonshot means one of their models sits at number one. A win for Anthropic or DeepSeek means one of theirs does instead. On July 31, 2026 at 12:00 PM Eastern Time, someone checks the Code Arena WebDev leaderboard at arena.ai and reads the rank-one model. Whatever company owns that model wins. If two models share the top rank, the one listed higher on the page wins. If that is still a tie, company names are sorted alphabetically and the first one wins. If the website is down at that moment, the check is simply delayed until the site comes back online. None of the provided news headlines are relevant to this market. They cover mining, smart glasses, EU social media rules, and banking, not AI coding benchmarks. The kind of news that would matter here is a new model release from Moonshot, Anthropic, or DeepSeek that changes their standing on coding leaderboards, or a major update to how the Code Arena leaderboard itself works. The main uncertainty is whether Moonshot can hold its position at number one through July 2026. The AI model landscape moves fast: any company can release a stronger model before the deadline and jump to the top overnight. Moonshot is a less widely covered company than Anthropic or others, so its current lead may not be well understood. The market prices Moonshot at 89%, meaning participants collectively see it as the strong favorite, but the main risk is simply an unexpected new release from a competitor.

The odds right now

• Moonshot+72.7 pts (1w)89%
• Anthropic-44.7 pts (1w)8%
• DeepSeek-13.6 pts (1w)3%
• Alibaba-20.4 pts (1w)3%
• OpenAI-55.5 pts (1w)1%
• MiniMax-17.3 pts (1w)0%
• Z.ai-37.5 pts (1w)0%
• SpaceXAI-38.4 pts (1w)0%
• Google-15.3 pts (1w)0%
• Meta-21.4 pts (1w)0%
• ByteDance-21.4 pts (1w)0%
• Xiaomi-5.0 pts (1w)0%

Price history

How this resolves

Resolves July 31, 2026

This market will resolve according to the company that owns the model that has the highest rank based on the Code Arena | WebDev Leaderboard (https://arena.ai/leaderboard/code/webdev) when the table under "Code Arena | WebDev" filtered for "Models" is checked on July 31, 2026, 12:00 PM ET. Results from the "Rank" column under the "Code Arena | WebDev" Leaderboard tab at https://arena.ai/leaderboard/code/webdev (Overall) filtered for "Models" will be used to resolve this market. Read the full resolution rules on the live market page.

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