TOTAL VOLUME:

$134.1b

24H VOL:

$113,466,932

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,423,222,590

402,751

Markets across

30,217

events

MATCHED EVENTS:

2,632

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

BETA
Dashboards
Tour
All
Science and Technology
Top Text to Speech AI this week
kalshi

Which AI will be top text to speech?

Volume:
$18,682

Cartesia

 - Kalshi

Cartesia - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 25, 2026

Closed: Sep 25, 10:00 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Cartesia

View
100%
Yes 100¢No 0¢
100¢
N/A
$13
N/A
N/A
$13
Settled
Yes
kalshi

Smallest.ai

0%
2%
Yes 0¢No 100¢
100¢
N/A
$3,433
N/A
N/A
$1,750
Settled
No
kalshi

SpeechifyAI

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,418
N/A
N/A
$1,418
Settled
No
kalshi

VUI Labs

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,417
N/A
N/A
$1,417
Settled
No
kalshi

Nvidia

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,200
N/A
N/A
$1,200
Settled
No
kalshi

Async

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,200
N/A
N/A
$1,200
Settled
No
kalshi

StepFun

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

Inworld

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

MiniMax

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

ElevenLabs

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

Fish Audio

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

Mistral

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

SpaceXAI

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

OpenAI

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

Google

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

Amazon

0%
1%
Yes 0¢No 100¢
100¢
N/A
$1,000
N/A
N/A
$1,000
Settled
No
kalshi

Alibaba

N/A
N/A
100¢
N/A
N/A
N/A
N/A
N/A
Settled
No
Total markets: 17

Description

This event tracks the competitive performance of various AI speech synthesis models on a specific leaderboard, determining which system achieves the highest ranking by a set date. The outcome reflects advancements and relative strengths in text-to-speech technology among leading AI developers.

Kalshi

The event determines the leading text-to-speech AI model as ranked on the Artificial Analysis Speech Arena Leaderboard at 10:00am ET on September 25, 2026. Each market corresponds to a specific AI developer, resolving to Yes if that developer’s model holds the #1 position. In cases where multiple models tie for the highest rank, the publisher’s official tie-breaking methodology applies; if none exists, all tied entities share the top rank. Contracts for tied entities resolve to $1 divided by the number of tied candidates, rounded down. Kalshi disclaims any affiliation with the Governing League, and all trademarks remain the property of their respective owners.

Frequently asked questions

Comparing prediction market odds to analyst forecasts reveals interesting insights into collective intelligence. Often, this market reflects a wisdom-of-the-crowd perspective, potentially incorporating information not yet fully appreciated by traditional analysts. While analyst reports may focus on specific technical specifications or company announcements, the market prices in a broader range of factors, including perceived momentum and real-world adoption. Discrepancies between the two can highlight areas where the market anticipates a different outcome than currently projected by experts, or where the market is reacting to news faster than analysts.

On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing their belief about the probability of each outcome. As more traders participate, the prices adjust to reflect the collective assessment of the Text to Speech AI landscape. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of a contract directly corresponds to the implied probability of that outcome occurring; higher prices indicate greater confidence in that outcome. This dynamic pricing mechanism allows the market to quickly incorporate new information and adjust expectations accordingly.

This market resolves around Sep 25, 2026, with the outcome confirmed once the leading Text to Speech AI model for the week is verifiable from credible public reporting. The resolution will be based on a consensus view of industry experts and benchmarks, evaluating factors like speech quality, naturalness, and overall performance. The determination will focus on identifying the AI model demonstrably leading in capabilities during the specified timeframe, as assessed through widely recognized evaluation metrics and public perception. The outcome is determined by the prevailing consensus, not by any single source.

Several signals or events could significantly move this market before Sep 25, 2026. Major announcements from leading AI companies regarding new model releases or performance improvements would likely cause shifts. Unexpected breakthroughs in speech synthesis technology, or the emergence of a previously unknown competitor, could also impact the odds. Furthermore, influential reviews from tech publications or endorsements from key industry figures could sway market sentiment. Any news related to the adoption or integration of these technologies into popular applications could also drive trading activity and alter the probabilities reflected in this market.