Live Odds · Updated October 24, 2026

OpenAI vs. Anthropic: First to announce recursive self-improvement?

As of October 24, 2026, 09:01 PM ET, Polymarket traders price Anthropic at 54.5% in OpenAI vs. Anthropic: First to announce recursive self-improvement? — $2.0K traded so far.

Last updated October 24, 2026, 08:45 PM ET with live prices from Polymarket. 24h volume: $346.
Leading outcome
Anthropic
55%
A 54.5% price implies roughly a 55-in-100 chance, set by traders risking real money.
24H −2.0 pts7D +2.0 pts30D −14.0 pts
Anthropic54.5%
OpenAI45.5%
Bid
44¢
Ask
47¢
Spread
3¢
Trade on Polymarket →
Range since September 18, 2026: 40.0% – 60.5% · Opened at 44.5%

Market facts

Event data
Event
OpenAI vs. Anthropic: First to announce recursive self-improvement?
Category
AI, Tech, OpenAI, Anthropic, AI Benchmarks, AI Achievements
Scheduled end
December 31, 2027, 11:59 PM ET
Total volume
$2.0K
Volume (24h)
$346
Liquidity
$188
Markets
1
Leading outcome
Anthropic — 54.5%

What is the current price?

Momentum & history

The leading outcome, Anthropic, is priced at 54.5%.

Price changes for the leading market — 24 hours: -2.0 pts; past week: +2.0 pts; past month: -14.0 pts.

Since September 18, 2026, Anthropic has traded between 40.0% and 60.5%. It opened at 44.5% and last traded at 54.5%.

DayClose
Oct 16, 202656.5%
Oct 18, 202656.5%
Oct 19, 202656.5%
Oct 20, 202656.0%
Oct 23, 202652.5%
Oct 24, 202654.5%
Oct 24, 202654.5%

Who is favored to win?

Outcomes

Anthropic is favored at 54.5%.

OutcomePriceImplied probability24h changeVolumeVolume share
Anthropic55¢54.5%+2.0 pts$2.0K100.0%
OpenAI46¢45.5%-2.0 pts$2.0K100.0%

See the full live book for this market on Polymarket

The leading market's spread is 3¢ (bid 44¢ / ask 47¢) — a tighter spread means cheaper round-trip trading.

How much has been traded?

Volume

$2.0K has been traded on this event in total, $346 of it in the last 24 hours, across 1 market.

When does this market resolve?

Rules

This market is scheduled to end December 31, 2027, 11:59 PM ET.

This market will resolve to "OpenAI" if OpenAI, or an official representative of OpenAI, announces that OpenAI has achieved recursive self-improvement before Anthropic does so. This market will resolve to "Anthropic" if Anthropic, or an official representative of Anthropic, announces that Anthropic has achieved recursive self-improvement before OpenAI does so. If neither company makes a qualifying announcement by December 31, 2027, 11:59 PM ET, or if both make qualifying announcements on the same calendar day, this market will resolve 50-50. A qualifying announcement by any other company does not end the race or affect resolution. Recursive self-improvement means a capability, as described in the company's announcement, in which the company's AI autonomously conducts the research and development needed to materially improve the general capabilities of its most capable or near-frontier AI systems, or to produce a more capable successor, with the improved system able to drive further such improvements. Humans may set high-level goals and provide resources, oversight, and approval, but must not supply the substantive research choices or the technical solution. Improvements that are toy, narrow, sandboxed, proof-of-concept, or limited to prompts, skills, or benchmark scores will not qualify. … (condensed)

What do the biggest traders hold?

Top holders

The largest current holder of the leading market holds 100 shares of Anthropic.

HolderOutcome heldSharesValue at current price
Tangible-Exasperation-GritAnthropic100$55
Belated-GlueOpenAI81$37
Blushing-Audit-PositionOpenAI31$14
Ajar-SportsmanOpenAI30$14
Scary-Neck-VascularAnthropic24$13
Untimely-MoodAnthropic23$13
Required-HornOpenAI20$9
Composed-LengthAnthropic10$5
Flashy-AuntAnthropic7$4
x26Anthropic6$3

What are the latest trades?

Tape
SELL OpenAI — $215 at 59.7%SELL OpenAI — $54 at 54.0%SELL Anthropic — $53 at 53.0%
TimeOutcomeSidePriceSize
Oct 24, 06:32 PM ETOpenAISELL44.0%$0
Oct 24, 05:29 PM ETAnthropicBUY53.0%$16
Oct 24, 12:41 PM ETOpenAIBUY49.0%$5
Oct 24, 11:30 AM ETOpenAISELL50.0%$10
Oct 24, 11:30 AM ETAnthropicBUY49.0%$10
Oct 24, 11:30 AM ETAnthropicBUY50.0%$10
Oct 24, 11:08 AM ETAnthropicBUY48.0%$26
Oct 24, 11:08 AM ETAnthropicSELL53.3%$24
Oct 24, 11:07 AM ETOpenAIBUY47.0%$2
Oct 24, 11:07 AM ETOpenAIBUY47.0%$9

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Frequently asked questions

FAQ

What are the odds of OpenAI vs. Anthropic: First to announce recursive self-improvement??

As of October 24, 2026, 08:45 PM ET, the leading outcome is Anthropic at 54.5%. Next is OpenAI at 45.5%. See the live book on Polymarket: https://polymarket.com/event/openai-vs-anthropic-first-to-announce-recursive-self-improvement?via=bro

How much money has been traded on OpenAI vs. Anthropic: First to announce recursive self-improvement??

$2.0K in total volume, with $346 traded in the last 24 hours across 1 markets.

When does OpenAI vs. Anthropic: First to announce recursive self-improvement? end?

The market is scheduled to end December 31, 2027, 11:59 PM ET.

What is the most likely outcome of OpenAI vs. Anthropic: First to announce recursive self-improvement?, according to Polymarket traders?

Anthropic, priced at 54.5% as of October 24, 2026, 08:45 PM ET. Prices are implied probabilities backed by real-money trading.

Browse the live odds index, today's biggest movers, and Whale Watch for the largest positions.

⚠️ Not financial advice: odds swing hard on news. Never bet money you can't afford to lose, and always read a market's resolution rules before trading.

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