AI is already reshaping just about everything we do, and given the pace at which this technology is progressing we can safely say that this is just the beginning.
But with so many models to choose from, how do we know who is currently winning the AI war?
Industry insiders share their opinions on the way artificial intelligence is heading all the time, but it’s prediction markets that give the clearest indicators of market sentiment towards our robot friends.
Key Takeaways:
- Anthropic is now pulling away as favorite. Claude's win probability surged to 64% following the restricted rollout of the highly anticipated and enormously powerful Mythos.
- Gemini’s momentum has cooled significantly, dropping to 13.9¢, despite early success with the 3.1 series. Traders are waiting to see if Google can deliver a counter-punch.
- ChatGPT is holding steady in second place at 15.3¢. We’ve seen minor signs of life here after months of stagnation, but traders remain skeptical about its chances.
- Grok and open-source alternatives are now fading into longshot territory, with xAI’s model sliding down to single digits.
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The latest AI prediction markets on Kalshi give us insight into all the important questions, from the top models of the moment to the potential growth of specific companies.
And of course, the question on everyone’s lips: which model is destined to be crowned the best AI of 2026?
Hype cycles come and go, but if you want to know which AI appears most capable of outsmarting its competitors before the year is out, it’s worth diving into the latest odds. Because right now, those odds suggest a changing of the guard could be underway.
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Best AI Odds 2026: The Current State of the Board
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Claude | ‘Yes’ 65¢
Anthropic is now the favorite, by a long way. The year started strong with Claude 4.6, but the real catalyst driving traders wild right now is the release of Claude Mythos.
Originally launched as a highly restricted preview in April, Anthropic expanded Mythos access on June 2 to over 150 critical infrastructure organizations worldwide.
Referred to as a cyber-defense powerhouse, Mythos class models are expected to be rolled out commercially this year. And that, coupled with Anthropic's confidential IPO filing on June 1, has made Claude a very likely winner in traders’ eyes.
ChatGPT | ‘Yes’ 15¢
OpenAI has managed to climb back into the second place, but it’s a distant second as traders back Claude in their droves. However, there has been some movement in the market recently with a number of traders still refusing to count Sam Altman out of this race.
At the current price of 15.3¢, the market is signalling that we’d need to see a surprise release well before December to get ChatGPT back at the top of this leaderboard.
Gemini | ‘Yes’ 14¢
It was looking like Google’s Gemini could be this year’s comeback kid for some time, but momentum has now slowed. Gemini has slipped into third place on the board, at 14¢.
There’s no denying that Google is a company with the deep pockets and infrastructure required to turn that around, but traders don’t think it’s going to happen before the end of this year.
Grok | ‘Yes’ 8¢
If you’re looking for this market’s wildcard, it’s got to be Grok. Now in its 4.20 Beta phase, Grok has pivoted from being a light-hearted, witty chatbot to a far more serious competitor in this game.
Grok ranks highly in both real-time search and mathematical logic, but its price has dropped right down to 8.5¢ in recent weeks (from 16¢ in May). That indicates serious skepticism about Grok’s ability to compete with the favorites before the year is out.
Value Picks: Where the Money is Moving
Finding value in prediction markets is about more than just picking the winner, because prediction markets work quite differently from sportsbooks.
With these markets, wins are also found when traders successfully identify gaps between market-implied probability and a model’s real trajectory.
Prediction markets are hyper-responsive to breaking news, and react instantly to new rumors as they circulate. But that means that prices can sometimes overreact to hype, and it’s situations like these that typically provide traders with the opportunities they’re looking for.
You need to be prepared to act swiftly if you’re looking for value plays on a fast market. These are two of the best options right now:
The ‘Yes’ value pick: Gemini | ‘Yes’ 14¢
Google has the deepest pockets and the most integrated hardware, so a ‘Yes’ for Gemini is good value at the current price.
Rumors are circulating of the release of Gemini 2.5 Ultra later this year, and buying ‘Yes’ at 14¢ offers a potential 6.5x return. If Google manages to clinch the top spot on the Arena leaderboard by December, every 14¢ invested could turn into $1.00.
The ‘No’ value pick: ChatGPT | ‘No’ 86¢
It feels like heresy to bet against Sam Altman on this board, but at 86¢ for a 'No' share, the market is screaming that a ChatGPT win is highly unlikely. If you, like many others, believe the era of OpenAI dominance has ended, this is a high-probability ‘No’ that looks likely to protect your money, even if the returns are on the modest side.
When will Anthropic release Mythos?
Claude may well be ruling the leaderboard here, but there’s another market Kalshi traders are now weighing in on and it all revolves around the release of Mythos.
The much talked about capabilities of Mythos have been sending shockwaves through the tech and cybersecurity sectors ever since its confidential preview leaked in April. But it still hasn’t been released, amid fears that it’s simply too powerful.
Unlike standard model upgrades, Mythos has the potential to uncover critical vulnerabilities across major operating systems, and that could be enormously problematic. As a result, its access is heavily restricted via Project Glasswing, meaning its only available to a select group of critical digital infrastructure operators and tech giants.
However, a wider rollout is on the horizon. Anthropic has stated that it expects to bring Mythos-class models to customers in the coming weeks, once safeguards are finalized. And Kalshi traders are now having their say on exactly when that might be.
Before June 15, 2026 | ‘Yes’ 28¢ | ‘No’ 73¢
Traders don’t think we’ll see a release within the next week or so. With Anthropic only expanding Project Glasswing access to 150 international organizations on June 2, the market feels a mid-June launch would be too tight a turnaround.
Before July 1, 2026 | ‘Yes’ 74¢ | ‘No’ 27¢
The market is currently backing a release before July, with traders expecting Anthropic to fulfil its promise of releasing Mythos in the coming weeks. Potentially, the model could launch before the end of the second quarter to supercharge pre-IPO valuation momentum.
September 1, 2026 | ‘Yes’ 84¢ | ‘No’ 17¢
If the model faces any safety delays, its launch could well be pushed back. But traders don’t believe that’ll go beyond September 1. With a current price of 84¢ for this date, traders are confident we’ll see Mythos launch before the end of the summer.
Before January 1, 2027 | ‘Yes’ 90¢ | ‘No’ 11¢
If you’re thinking long-term, this one’s a high probability option. At 90¢, the market is loud and clear that Mythos will be a reality before the end of this year.
The Wall Street AI Race: Trading the Impending IPOs
The battle for AI supremacy has officially spilled over onto Wall Street. Both Anthropic and OpenAI submitted confidential draft S-1 prospectuses to the SEC at the beginning of June, positioning themselves for public debuts that could reach huge valuations later this year.
Prediction market traders are putting money on these secondary AI markets, along with key markets like the best AI of 2026, as they attempt to get ahead of the companies and correctly predict the timing of public listing announcements.
- OpenAI IPO Timing: Despite OpenAI stating it has no fixed timeline, the market currently favors a late 2026 debut. Contracts for an official announcement before October 1 are now sitting at 58¢, but there’s greater confidence in a pre-November launch.
- The Race to Debut First: The "First to IPO" market has turned into a major battleground. Anthropic is the favorite at 76¢, with traders betting that its traditional corporate structure will clear regulatory hurdles more easily than OpenAI's model. OpenAI is trailing as the 33¢ underdog at the moment.
Traders are now using markets like these as an alternative to tech stocks. They’re also hugely informative for those with contracts on markets like the best AI of 2026 and the number of tech layoffs we’ll see in 2026.
Keep an eye on any breaking news stories ahead of regulatory updates, because the smallest of rumors has the potential to flip prices on these markets.
How is the Best AI of 2026 Decided?
The best AI at any moment is a little subjective. For this market, however, the winner is determined by data from the LM Arena Leaderboard.
The AI that tops the leaderboard on December 31, 2026, will be named the best of the year. It doesn't matter if other models have spent prolonged periods at the top spot during the year.
What is the LM Arena Leaderboard?
The LM Arena Leaderboard, which is sometimes also referred to as the Chatbot Arena, is an open-source research project developed by LMSYS Org (Large Model Systems Organization), a research group from UC Berkeley.
Designed to evaluate the performance of Large Language Models (LLMs), the The LM Arena Leaderboard is often used to determine which models we prefer.
The data used to determine positions on this leaderboard is provided by tests on real human preference, rather than static automated checks. And its this real-world testing that’s key to why the leaderboard is now widely considered one of the most reliable metrics on how well models really perform in day-to-day usage.
How does the LM Arena Leaderboard work?
The leaderboard uses human evaluation methods to determine which AI models are most useful at any one time. This crowdsourced data is collected in a relatively simple but highly effective way.
- Step 1: Humans are presented with two answers to a given query, taken from two anonymous, randomly selected AI models.
- Step 2: They are asked to vote for the one they prefer, with options for Model A, Model B or a tie.
- Step 3: Once the vote has been cast, the person is then told which models the responses came from.
As responses are gathered, the platform compiles that information using the Elo rating system. If a model wins against a stronger opponent, it sees a higher increase in its ranking than it would if it had beat a weaker opponent. Similarly, models can see big drops in their rankings if they lose to a weak opponent.
The fact that this rating system relies on real prompts from humans, which can be enormously varied and are sometimes sparse on detail, means that it gives a much clearer picture of how models really perform in the wild than other metrics.
The platform is also seen as the most up-to-date measure of human preference, as it’s updated in real-time using new models as soon as they’re released.
Which companies will have a top-ranked AI model this year?
How do Kalshi’s AI Prediction Markets Work?
Unlike traditional investing where you buy a stock and hope it goes up over years, prediction markets like Kalshi allow you to trade on specific outcomes.
Binary Outcomes: You buy a ‘Yes’ or ‘No’ contract. Each contract pays out exactly $1.00 if you are right and $0.00 if you are wrong.
Real-Time Reaction: Unlike a quarterly earnings report, these markets react instantly to breaking news. That could be a big announcement like a surprise model drop from Meta, or even something as simple as a new X post from Elon Musk.
The Flip Strategy: Many traders intend to buy ‘Yes’ on a model like Grok (9.3¢) in the hope that there’ll be a hype-driven price spike that takes the price over 30¢ before long. If that happens, traders will often sell before the year ends to lock in a profit, without waiting for the final result.
FAQs: The Race for Best AI of 2026
The Kalshi market specifically uses the LM Arena Leaderboard. It’s a blind battle where humans rank which AI response is better without knowing which model provided it.
According to the rules, if two models are tied in rank, the one with the higher Arena Score wins. If still tied, the one with more votes wins. If they’re still tied, the elder model takes the prize.
Not at all. The market stays open until December 31, 2026. There are plenty of model drops left that will shift prices as time goes on.
While Meta's LLaMA is incredibly popular, it is an open-source model. Historically, closed-source models (like Claude or Gemini) have held the very top performance spot because they run on massive, proprietary compute clusters that are harder to replicate in open-source versions.
