KalshiCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedCurrent implied probability
claude-fable-5.1-max 80%Leader of 6 outcomesVig-adjusted: raw venue quotes summed above 100% and were normalized.
Market quality
47 / 100
Low quality24h Volume
$8.3K
Liquidity
$19.6K
Medium liquidityMarket data
Updated 4 minutes ago
Aug 31, 26, 5:30 PMSep 30, 26, 2:00 PM
Trends
Rules
If claude-opus-4-6-thinking is the top-ranked AI model on Sep 30, 2026 at 10:00 AM ET, then the market resolves to Yes.
Settles via:LM Arena Leaderboard (Remove Style Control)
- If two models are tied under Rank (UB), then the model with the highest Arena Score will win.
- If two models are still tied after that, then the model with the most votes will win.
- If two models are still tied after that, the model that was released earlier will win.
- Important information: When checking the source for this market, check the 'Remove Style Control' toggle.
- If claude-opus-5-high is the top-ranked AI model on Sep 30, 2026 at 10:00 AM ET, then the market resolves to Yes.
Open markets
AI
POLYMARKETOpenAI’s Astra released by which date?
- October 31+0.1pt99%
- September 30-0.7pt98%
- September 25-0.3pt98%
+8 more outcomes
- Total Vol
- $1.2M
- 24h Vol
- $539.3K
KALSHIBest AI at the end of 2026?
- Claude-3.2pt58.6%
- ChatGPT-1.2pt24%
- Grok+1.5pt7.7%
+5 more outcomes
- Total Vol
- $10.1M
POLYMARKETGPT-6 released by which date?
- October 31,+9.2pt100%
- November 30,+6.8pt100%
- December 31,+5.5pt100%
+10 more outcomes
POLYMARKETOpenAI's Astra released on?
- September 4+34.9pt44%
- September 24+21.4pt23%
- September 17+21.1pt22%
+27 more outcomes
KALSHIBest AI in Sep 2026?
- Claude-10.0pt76.5%
- ChatGPT+6.0pt16.7%
- Gemini+2.0pt2.9%
+4 more outcomes
- Total Vol
- $173.4K
KALSHIWhen will OpenAI release GPT-6?
- Before Sep 16, 2026+14.0pt99%
- Before Oct 1, 2026+9.0pt99%
- Before Nov 1, 2026+6.0pt99%
+4 more outcomes
- Total Vol
- $703K
- Which week will OpenAI release Astra?
- When will OpenAI release Astra?
- Which company has best AI model end of 2026?
- Anthropic IPO by which date?
- AI capability growth this year?
- When will OpenAI achieve AGI?
- Will Anthropic’s valuation hit __ by December 31?
- Will any AI model reach ___ Overall Arena Score by September 30?
- OpenAI’s Astra Model: Text Arena Debut?
- Gemini 4.0 released by which date?
- When will any company achieve AGI?
Frequently asked questions
- What are the current odds for Top AI model in September??
- Kalshi prices claude-fable-5.1-max at 80% as of September 4, 2026.
- When does Top AI model in September? resolve?
- Top AI model in September? is scheduled to resolve on September 30, 2026.
- How is Top AI model in September? settled?
- Kalshi settles this market as follows: If claude-opus-4-6-thinking is the top-ranked AI model on Sep 30, 2026 at 10:00 AM ET, then the market resolves to Yes.