The Republican nominee wins the 2026 Ohio gubernatorial election.
Ohio holds its gubernatorial race on November 3, 2026. The market resolves to Yes if the official Republican Party nominee wins the election.
Across 6 frontier models answering independently, the panel leans yes: the median is 78%.
They do not agree: Claude puts it at 90% and DeepSeek at 55%, 35 points apart. A spread that wide usually means the question turns on something none of them can see yet.
Money disagrees. The market sits at 19%, so the models are 59 points more confident than people with cash on the outcome — one of the wider gaps in the archive.
Nothing is settled until 4 Nov 2026, when the outcome is checked against sources and every number above gets a permanent score.
- AI edge
- +59 pts
- Volume
- $830K
The models are sharply more confident than traders risking real money: 78% against 19%.
What each one said
-
ClaudeAnthropic
Ohio's strong GOP lean and open-seat dynamics favor Vivek Ramaswamy or the eventual GOP nominee heavily.
- Ohio has trended solidly Republican statewide since 2016, with DeWine winning by large margins and Trump carrying it comfortably in 2024.
- Vivek Ramaswamy is the presumptive frontrunner with Trump's endorsement, and Ohio's governor's races haven't favored Democrats since 2006.
- A late Democratic surge or unexpected scandal could shift this, but polling and fundamentals strongly favor the GOP nominee heading into election day.
90% -
QwenAlibaba
Ohio's ~8-point Republican partisan lean is the dominant force; Ramaswamy's unconventional profile is a minor drag.
- Ohio has elected a Republican governor in every race since 2006; Trump carried the state by ~8 points in 2024, setting a high floor.
- Ramaswamy is a first-time elected-office candidate with some intra-party friction, which could suppress turnout slightly vs. a generic R.
- Amy Acton would need to overperform the partisan baseline by roughly 6-8 points to win; a late polling collapse by Ramaswamy would change this.
89% -
GrokxAI
Ohio’s R lean plus two-day-out polling make the GOP nominee the clear favorite.
- DeWine’s 2022 25-pt win and Trump’s 2024 Ohio margin set a high GOP floor the nominee inherits.
- No late scandal or third-party surge has appeared; remaining undecideds historically break toward the incumbent party.
- A last-minute Democratic over-performance in Cuyahoga/Franklin would be the only plausible path to an upset.
82% -
GeminiGoogle
Ohio's solid rightward shift and structural GOP lean make the Republican nominee a heavy favorite in an open gubernatorial contest.
- Ohio has voted reliably Republican by roughly eight percentage points at the federal level, favoring the state's dominant GOP bench.
- Republicans have held the Ohio governorship for 28 of the last 32 years, establishing a very high baseline win rate.
- A bruising GOP primary producing a weak nominee against a top-tier Democrat like Amy Acton is the main risk to the Republican hold.
74% -
GPTOpenAI
Ohio’s recent Republican lean gives the GOP a real edge, but an open-seat race keeps it short of a lock.
- Voters decide November 3, with official county and state canvasses expected to establish the winner by the next day.
- Ohio backed Trump by roughly 11 points in 2024 and Republicans hold statewide offices, a favorable baseline for their nominee.
- An unusually strong Democratic nominee, turnout surge, or late scandal affecting the GOP ticket would materially reduce that edge.
63% -
DeepSeekDeepSeek
Ohio's red lean and the GOP's hold on statewide offices make the Republican nominee a slight favorite, but the race is close enough that turnout and candidate quality decide it.
- Ohio has voted Republican in the last three presidential elections and holds every statewide executive office, giving the GOP a structural edge in a midterm year.
- The Democratic nominee must overcome that lean and national midterm headwinds, which historically favor the party out of the White House, but Ohio's shift right has…
- The single development that would most change my mind is a late-breaking scandal or a national environment shift large enough to put Ohio back in the toss-up column.
55%
6 of 6 models answered · 35 points between the highest and lowest. None was shown the market price.
Resolution criteria
This market will resolve according to the winner of the 2026 Ohio gubernatorial election. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Question sourced from Polymarket on 1 Nov 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.