Markets

Will Anthropic release Mythos before Sep 1, 2026?

KalshiSettled No174K contracts traded

No

Settled Sep 1, 2026 · opened at 72%

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Apr 16May 16Jun 15Jul 15Aug 14

Venue price history · ring: settled No (0%), not a trade

What moved it

The largest moves on the record and what Langbot heard or read just before each one. Timing, not cause.

  1. 94% to 19% (−75.5 pts)Jun 10, 12:00 AM ET

    Nothing on the record in the ten minutes before.

  2. 83% to 94% (+11.5 pts)Jun 8, 11:00 PM ET

    Nothing on the record in the ten minutes before.

  3. 45% to 85% (+40 pts)May 29, 2:00 PM ET

    Nothing on the record in the ten minutes before.

  4. 70% to 33% (−37 pts)May 17, 8:00 PM ET

    Nothing on the record in the ten minutes before.

  5. 27% to 70% (+43 pts)May 16, 11:00 PM ET

    Nothing on the record in the ten minutes before.

The rules

Kalshi's rules, as the venue wrote them.

If Anthropic releases A model called Mythos before Sep 1, 2026, then the market resolves to Yes.

Release must be to the public, outside of a closed beta, though limiting it to a high-cost subscription tier is acceptable.

The market on Kalshi

Ticker
KXCLAUDE-MYTH-26SEP01
Closes
Aug 31, 2026

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