Selected book midpoint
OpenAI · —
Loading selected book…
—
Stored reference
OpenAI 99%Leader of 13 outcomes
OpenAI 99%Market quality
70 / 100
Medium quality24h Volume
$656
Liquidity
$21.7K
Medium liquidityOpen interest
$3.1K
Bid / Ask
— / —
OpenAISpread
—
Comments
0
7d Change
+8.5 pts
Market data
Updated 12 minutes ago
Aug 13, 26, 12:04 AM UTCOct 31, 26, 4:00 PM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Minimum order (shares):
- 5
- Tick size:
- 0.1 percentage points
- Fees:
- Yes
Top holders
Loading top holders
Market depth · OpenAI
Loading selected book…
—
Related Markets
Related questions for context, not a comparison of equivalent contracts.
Which company has the best Text-to-Image AI end of December?
PolymarketWhich company has the best Text-to-Image AI end of November?
PolymarketTop Text to Image AI this week
KalshiWhich company has the best Text-to-Video AI end of October?
PolymarketWhich company has the best Image Edit AI end of October?
PolymarketOpen Weights text-to-image model with Elo ≥ 1200 on Artificial Analysis by EOY 2026?
Manifold MarketsRules
This market will resolve according to the company that owns the model that has the highest rank based on the arena.ai Text-to-Image Leaderboard when the table under "Text-to-Image Arena" filtered for "Models" is checked on October 31, 2026, 12:00 PM ET.
- Results from the "Rank" column under the "Text-to-Image Arena" Leaderboard tab at https://arena.ai/leaderboard/text-to-image (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 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”).