The Prediction Markets

Which AI company will have the best coding model at the end of 2026?

Closes
Dec 31, 2026, in 2 months
Traded
$4.1M
Venues
Polymarket, Kalshi
Prices updated
4 h ago
Share

What the markets expect

Anthropic 69.9%

Next is OpenAI at 9.6%. Polymarket and Kalshi agree within 1 point on each matched outcome.

Anthropic 69.9%OpenAI 9.6%Google 8.3%Moonshot 2.6%xAI 2.1%15 others 7.5%

Odds by venue

Fair chance strips out each venue’s built-in margin (its prices add up to more than 100%), then blends the venues by how much has traded there, so the outcomes add up to 100%. 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 4 h ago. Ages are as of when this page was built.

  • Polymarket
  • Kalshi
Anthropic
69.9%
Polymarket 46.5%(14.5% fair)polled, 4 h agoPolymarket 92.5%(14.5% fair)polled, 4 h agoPolymarket 80.5%(14.5% fair)polled, 4 h agoKalshi 81%(69.1% fair)polled, 4 h agoBest Yes 47¢ on Polymarket, $100 pays $213 (2.13x)
Polymarket
Contract
Anthropic
Last price
46.5%
Fair, margin removed
14.5%
As of
Polled 4 h ago
Buy Yes
47¢
Sell Yes
46¢
$100 on Yes pays
$213 (2.13x)
Volume
$396K
Trade this on Polymarket
Polymarket
Contract
Anthropic
Last price
92.5%
Fair, margin removed
14.5%
As of
Polled 4 h ago
Buy Yes
93¢
Sell Yes
92¢
$100 on Yes pays
$108 (1.08x)
Volume
$14K
Trade this on Polymarket
Polymarket
Contract
Anthropic
Last price
80.5%
Fair, margin removed
14.5%
As of
Polled 4 h ago
Buy Yes
88¢
Sell Yes
73¢
$100 on Yes pays
$114 (1.14x)
Volume
$3K
Trade this on Polymarket
Kalshi
Contract
Anthropic
Last price
81%
Fair, margin removed
69.1%
As of
Polled 4 h ago
Buy Yes
81¢
Sell Yes
76¢
$100 on Yes pays
$123 (1.23x)
Volume
$274K
Trade this on Kalshi
Same label, rules unverified

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

Prices on these venues are 4 h old, too old to show an executable spread.

OpenAI
9.6%
Polymarket 5.2%(1.6% fair)polled, 4 h agoPolymarket 3.9%(1.6% fair)polled, 4 h agoPolymarket 5.3%(1.6% fair)polled, 4 h agoKalshi 17%(14.5% fair)polled, 4 h agoBest Yes 5.7¢ on Polymarket, $100 pays $1,754 (17.5x)
Polymarket
Contract
OpenAI
Last price
5.2%
Fair, margin removed
1.6%
As of
Polled 4 h ago
Buy Yes
5.7¢
Sell Yes
4.6¢
$100 on Yes pays
$1,754 (17.5x)
Volume
$234K
Trade this on Polymarket
Polymarket
Contract
OpenAI
Last price
3.9%
Fair, margin removed
1.6%
As of
Polled 4 h ago
Buy Yes
7¢
Sell Yes
0.7¢
$100 on Yes pays
$1,429 (14.3x)
Volume
$5K
Trade this on Polymarket
Polymarket
Contract
OpenAI
Last price
5.3%
Fair, margin removed
1.6%
As of
Polled 4 h ago
Buy Yes
8.9¢
Sell Yes
1.6¢
$100 on Yes pays
$1,124 (11.2x)
Volume
$369
Trade this on Polymarket
Kalshi
Contract
OpenAI
Last price
17%
Fair, margin removed
14.5%
As of
Polled 4 h ago
Buy Yes
17¢
Sell Yes
15¢
$100 on Yes pays
$588 (5.88x)
Volume
$217K
Trade this on Kalshi
Same label, rules unverified

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

Prices on these venues are 4 h old, too old to show an executable spread.

Google
8.3%
Polymarket 40.5%(12.6% fair)polled, 4 h agoPolymarket 0.6%(12.6% fair)polled, 4 h agoPolymarket 5.5%(12.6% fair)polled, 4 h agoKalshi 2%polled, 4 h agoBest Yes 1¢ on Polymarket, $100 pays $10,000 (100x)
Polymarket
Contract
Google
Last price
40.5%
Fair, margin removed
12.6%
As of
Polled 4 h ago
Buy Yes
41¢
Sell Yes
40¢
$100 on Yes pays
$244 (2.44x)
Volume
$359K
Trade this on Polymarket
Polymarket
Contract
Google
Last price
0.6%
Fair, margin removed
12.6%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.2¢
$100 on Yes pays
$10,000 (100x)
Volume
$2K
Trade this on Polymarket
Polymarket
Contract
Google
Last price
5.5%
Fair, margin removed
12.6%
As of
Polled 4 h ago
Buy Yes
9¢
Sell Yes
2¢
$100 on Yes pays
$1,111 (11.1x)
Volume
$661
Trade this on Polymarket
Kalshi
Contract
Google
Last price
2%
As of
Polled 4 h ago
Buy Yes
3¢
Sell Yes
2¢
$100 on Yes pays
$3,333 (33.3x)
Volume
$205K
Trade this on Kalshi
Same label, rules unverified

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

Prices on these venues are 4 h old, too old to show an executable spread.

Moonshot
2.6%
Polymarket 0.7%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 14.9%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Moonshot
Last price
0.7%
As of
Polled 4 h ago
Buy Yes
0.7¢
Sell Yes
0.6¢
$100 on Yes pays
$14,286 (143x)
Volume
$184K
Trade this on Polymarket
Polymarket
Contract
Moonshot
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$310
Trade this on Polymarket
Polymarket
Contract
Moonshot
Last price
14.9%
As of
Polled 4 h ago
Buy Yes
29.1¢
Sell Yes
0.6¢
$100 on Yes pays
$344 (3.44x)
Volume
$235
Trade this on Polymarket
xAI
2.1%
Polymarket 1.1%(0.3% fair)polled, 4 h agoKalshi 2%polled, 4 h agoBest Yes 1.3¢ on Polymarket, $100 pays $7,692 (76.9x)
Polymarket
Contract
xAI
Last price
1.1%
Fair, margin removed
0.3%
As of
Polled 4 h ago
Buy Yes
1.3¢
Sell Yes
0.9¢
$100 on Yes pays
$7,692 (76.9x)
Volume
$187K
Trade this on Polymarket
Kalshi
Contract
xAI
Last price
2%
As of
Polled 4 h ago
Buy Yes
2¢
Sell Yes
1¢
$100 on Yes pays
$5,000 (50.0x)
Volume
$179K
Trade this on Kalshi
Same label, rules unverified

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

Prices on these venues are 4 h old, too old to show an executable spread.

Moonshot AI
1.7%
Kalshi 1%polled, 4 h agoBest Yes 1¢ on Kalshi, $100 pays $10,000 (100x)
Kalshi
Contract
Moonshot AI
Last price
1%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
—
$100 on Yes pays
$10,000 (100x)
Volume
$81K
Trade this on Kalshi
Nvidia
1%
Polymarket 0.1%polled, 4 h agoPolymarket 5.3%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Nvidia
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$499
Trade this on Polymarket
Polymarket
Contract
Nvidia
Last price
5.3%
As of
Polled 4 h ago
Buy Yes
10.2¢
Sell Yes
0.3¢
$100 on Yes pays
$980 (9.80x)
Volume
$214
Trade this on Polymarket
Meta
0.8%
Polymarket 1.7%(0.5% fair)polled, 4 h agoPolymarket 1%(0.5% fair)polled, 4 h agoPolymarket 0.6%(0.5% fair)polled, 4 h agoBest Yes 1¢ on Polymarket, $100 pays $10,000 (100x)
Polymarket
Contract
Meta
Last price
1.7%
Fair, margin removed
0.5%
As of
Polled 4 h ago
Buy Yes
2¢
Sell Yes
1.4¢
$100 on Yes pays
$5,000 (50.0x)
Volume
$208K
Trade this on Polymarket
Polymarket
Contract
Meta
Last price
1%
Fair, margin removed
0.5%
As of
Polled 4 h ago
Buy Yes
1.5¢
Sell Yes
0.5¢
$100 on Yes pays
$6,667 (66.7x)
Volume
$2K
Trade this on Polymarket
Polymarket
Contract
Meta
Last price
0.6%
Fair, margin removed
0.5%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.2¢
$100 on Yes pays
$10,000 (100x)
Volume
$229
Trade this on Polymarket
Alibaba
0.6%
Polymarket 0.6%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.7%polled, 4 h agoKalshi 1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Alibaba
Last price
0.6%
As of
Polled 4 h ago
Buy Yes
0.6¢
Sell Yes
0.5¢
$100 on Yes pays
$16,667 (167x)
Volume
$169K
Trade this on Polymarket
Polymarket
Contract
Alibaba
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$355
Trade this on Polymarket
Polymarket
Contract
Alibaba
Last price
0.7%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.3¢
$100 on Yes pays
$10,000 (100x)
Volume
$207
Trade this on Polymarket
Kalshi
Contract
Alibaba
Last price
1%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
—
$100 on Yes pays
$10,000 (100x)
Volume
$52K
Trade this on Kalshi
Same label, rules unverified

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

Prices on these venues are 4 h old, too old to show an executable spread.

DeepSeek
0.6%
Polymarket 0.4%polled, 4 h agoPolymarket 0.4%polled, 4 h agoPolymarket 0.6%polled, 4 h agoKalshi 1%polled, 4 h agoBest Yes 0.4¢ on Polymarket, $100 pays $25,000 (250x)
Polymarket
Contract
DeepSeek
Last price
0.4%
As of
Polled 4 h ago
Buy Yes
0.4¢
Sell Yes
0.3¢
$100 on Yes pays
$25,000 (250x)
Volume
$171K
Trade this on Polymarket
Polymarket
Contract
DeepSeek
Last price
0.4%
As of
Polled 4 h ago
Buy Yes
0.6¢
Sell Yes
0.1¢
$100 on Yes pays
$16,667 (167x)
Volume
$842
Trade this on Polymarket
Polymarket
Contract
DeepSeek
Last price
0.6%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.2¢
$100 on Yes pays
$10,000 (100x)
Volume
$195
Trade this on Polymarket
Kalshi
Contract
DeepSeek
Last price
1%
As of
Polled 4 h ago
Buy Yes
2¢
Sell Yes
1¢
$100 on Yes pays
$5,000 (50.0x)
Volume
$93K
Trade this on Kalshi
Same label, rules unverified

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

Prices on these venues are 4 h old, too old to show an executable spread.

Show 13 more outcomes
Z.ai
0.6%
Polymarket 0.3%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.6%polled, 4 h agoKalshi 1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Z.ai
Last price
0.3%
As of
Polled 4 h ago
Buy Yes
0.3¢
Sell Yes
0.2¢
$100 on Yes pays
$33,333 (333x)
Volume
$150K
Trade this on Polymarket
Polymarket
Contract
Z.ai
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$507
Trade this on Polymarket
Polymarket
Contract
Z.ai
Last price
0.6%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.2¢
$100 on Yes pays
$10,000 (100x)
Volume
$209
Trade this on Polymarket
Kalshi
Contract
Z.ai
Last price
1%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
—
$100 on Yes pays
$10,000 (100x)
Volume
$69K
Trade this on Kalshi
Same label, rules unverified

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

Prices on these venues are 4 h old, too old to show an executable spread.

SpaceXAI
0.6%
Polymarket 0.3%polled, 4 h agoPolymarket 2.9%polled, 4 h agoBest Yes 0.4¢ on Polymarket, $100 pays $25,000 (250x)
Polymarket
Contract
SpaceXAI
Last price
0.3%
As of
Polled 4 h ago
Buy Yes
0.4¢
Sell Yes
0.1¢
$100 on Yes pays
$25,000 (250x)
Volume
$2K
Trade this on Polymarket
Polymarket
Contract
SpaceXAI
Last price
2.9%
As of
Polled 4 h ago
Buy Yes
5¢
Sell Yes
0.7¢
$100 on Yes pays
$2,000 (20.0x)
Volume
$231
Trade this on Polymarket
Baidu
0.5%
Polymarket 0.1%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.1%polled, 4 h agoKalshi 1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Baidu
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$122K
Trade this on Polymarket
Polymarket
Contract
Baidu
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$395
Trade this on Polymarket
Polymarket
Contract
Baidu
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$154
Trade this on Polymarket
Kalshi
Contract
Baidu
Last price
1%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
—
$100 on Yes pays
$10,000 (100x)
Volume
$16K
Trade this on Kalshi
Same label, rules unverified

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

Tencent
0.3%
Polymarket 0.1%polled, 4 h agoPolymarket 1.1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Tencent
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$297
Trade this on Polymarket
Polymarket
Contract
Tencent
Last price
1.1%
As of
Polled 4 h ago
Buy Yes
2¢
Sell Yes
0.2¢
$100 on Yes pays
$5,000 (50.0x)
Volume
$223
Trade this on Polymarket
Amazon
0.2%
Polymarket 0.2%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.6%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Amazon
Last price
0.2%
As of
Polled 4 h ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$145K
Trade this on Polymarket
Polymarket
Contract
Amazon
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$410
Trade this on Polymarket
Polymarket
Contract
Amazon
Last price
0.6%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.2¢
$100 on Yes pays
$10,000 (100x)
Volume
$209
Trade this on Polymarket
Microsoft
0.2%
Polymarket 0.2%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.7%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Microsoft
Last price
0.2%
As of
Polled 4 h ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$136K
Trade this on Polymarket
Polymarket
Contract
Microsoft
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$426
Trade this on Polymarket
Polymarket
Contract
Microsoft
Last price
0.7%
As of
Polled 4 h ago
Buy Yes
1.2¢
Sell Yes
0.2¢
$100 on Yes pays
$8,333 (83.3x)
Volume
$225
Trade this on Polymarket
ByteDance
0.1%
Polymarket 0.2%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
ByteDance
Last price
0.2%
As of
Polled 4 h ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$135K
Trade this on Polymarket
Polymarket
Contract
ByteDance
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$363
Trade this on Polymarket
Polymarket
Contract
ByteDance
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$195
Trade this on Polymarket
MiniMax
0.1%
Polymarket 0.1%polled, 4 h agoPolymarket 0.6%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
MiniMax
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$494
Trade this on Polymarket
Polymarket
Contract
MiniMax
Last price
0.6%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.2¢
$100 on Yes pays
$10,000 (100x)
Volume
$195
Trade this on Polymarket
Mistral
0.1%
Polymarket 0.2%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.6%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Mistral
Last price
0.2%
As of
Polled 4 h ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$212K
Trade this on Polymarket
Polymarket
Contract
Mistral
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$612
Trade this on Polymarket
Polymarket
Contract
Mistral
Last price
0.6%
As of
Polled 4 h ago
Buy Yes
1¢
Sell Yes
0.2¢
$100 on Yes pays
$10,000 (100x)
Volume
$195
Trade this on Polymarket
Thinky
0.1%
Polymarket 0.1%polled, 4 h agoPolymarket 0.2%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Thinky
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$454
Trade this on Polymarket
Polymarket
Contract
Thinky
Last price
0.2%
As of
Polled 4 h ago
Buy Yes
0.2¢
Sell Yes
0.1¢
$100 on Yes pays
$50,000 (500x)
Volume
$204
Trade this on Polymarket
Meituan
0%
Polymarket 0.1%polled, 4 h agoPolymarket 0.1%polled, 4 h agoPolymarket 0.1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Meituan
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$108K
Trade this on Polymarket
Polymarket
Contract
Meituan
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$364
Trade this on Polymarket
Polymarket
Contract
Meituan
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$178
Trade this on Polymarket
StepFun
0%
Polymarket 0.1%polled, 4 h agoPolymarket 0.1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
StepFun
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$334
Trade this on Polymarket
Polymarket
Contract
StepFun
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$195
Trade this on Polymarket
Xiaomi
0%
Polymarket 0.1%polled, 4 h agoPolymarket 0.1%polled, 4 h agoBest Yes 0.1¢ on Polymarket, $100 pays $100,000 (1000x)
Polymarket
Contract
Xiaomi
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$468
Trade this on Polymarket
Polymarket
Contract
Xiaomi
Last price
0.1%
As of
Polled 4 h ago
Buy Yes
0.1¢
Sell Yes
—
$100 on Yes pays
$100,000 (1000x)
Volume
$195
Trade this on Polymarket

Venue prices are 4 h old, so we are not showing a cross-venue spread. Check each venue for current prices. Find markets with fresh spreads

Mostly the same bet: one difference

Where they differ

  • Trading closes at different times: Dec 31, 2026, 5:00 PM UTC on Polymarket and Dec 31, 2026, 3:00 PM UTC on Kalshi.
Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: lmarena.ai, livebench.ai
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: LiveBench.ai
Show full rule comparison
  • Trading closes Dec 31, 2026, 5:00 PM UTC on Polymarket and Dec 31, 2026, 3:00 PM UTC on Kalshi.

Summarized from each venue’s published rules; the venue’s own rules page is the final word.

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Anthropic
  • OpenAI
  • Google

Live prices for Anthropic

What it costs to buy Yes, what you would get selling it, and the last trade on each exchange, updating as orders change. Hover a status for timing details.

Order books

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.

Combined depth · both venues

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Top of book

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Best bid
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Spread
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Best ask
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Depth · top 8 levels

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Recent trades

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Top of book

Connecting
Best bid
—
Spread
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Best ask
—

Waiting for the first live quote…

Depth · top 8 levels

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Recent trades

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What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

$
Buy

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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.

About this market

Live prediction market odds for "Which AI company will have the best coding model at the end of 2026?". Anthropic leads at 69.9%. Next is OpenAI at 9.6%. $4.1M has traded across 23 outcomes on Polymarket and Kalshi. The market is expected to resolve by Dec 31, 2026.

Questions

What does the consensus price mean?

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%.

How is the payout worked out?

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.

Why do the venues show different prices?

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.

Is a price gap an arbitrage?

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.

How fresh are these prices?

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.

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