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Anthropic 80%
Next is OpenAI at 36.1%. The venues differ most on OpenAI (Polymarket 93.5%, Kalshi 17%), a 77-point gap.
Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.
Prices come from our regular polls of each venue, the oldest 48 min ago. Ages are as of when this page was built.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Indicative only, prices are 48 min old: Buying on Kalshi at 17¢ and selling on Polymarket at 92¢ nets 7500 bps before fees.


Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Indicative only, prices are 48 min old: Buying on Polymarket at 0.6¢ and selling on Kalshi at 2¢ nets 140 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.










Indicative gap, prices are 48 min old: OpenAI asks 17¢ on Kalshi and bids 92¢ on Polymarket (7500 bps). Recheck both venues before trading. See all spreads
Summarized from each venue’s published rules; the venue’s own rules page is the final word.
The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.
Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.
Polymarket doesn’t list Anthropic for this event.
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Enter a stake to see where it buys the most after fees, using each venue’s live order book.
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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.
Live prediction market odds for "Which company has the best Image Edit AI end of October?". Anthropic leads at 80%. Next is OpenAI at 36.1%. $1.2M has traded across 20 outcomes on Kalshi and Polymarket. The market is expected to resolve by Nov 1, 2026.
This market will resolve according to the company that owns the model that has the highest rank based on the arena.ai Image Edit Leaderboard when the table under "Image Edit Arena" filtered for "Models" is checked on October 31, 2026, 12:00 PM ET. Results from the "Rank" column under the "Image Edit Arena" Leaderboard tab at https://arena.ai/leaderboard/image-edit (Overall) filtered for "Models" will be used to resolve this market. Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score. Models marked “Preliminary” at the applicable check time will be considered. Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by which model is listed higher on the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking. The resolution source for this market is the arena.ai Image Edit Arena Leaderboard. If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve to "Other".
It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.
A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.
Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.
Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.
Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.