MANIFOLD
Claude Sonnet 5 Prop Bets
114
Ṁ2.8kṀ31k
Feb 11
98%
Available in Claude Code at launch
91%
Will Sonnet 5 be available on the free Claude tier at launch?
80%
Outperforms Opus 4.5 in WebDev on LMArena
77%
50% if significantly better than Sonnet 4.5, YES if significantly better than Opus 4.5 (President's judgement)
77%
400k+ token context window
65%
Will Claude Sonnet 5 debut in the LM Arena Top 3 overall within 7 days of release?
57%
1M+ token context window
47%
Releases Feb 5th
34%
"agent swarm" or other more sophisticated multi agent scheme released/announced with launch.
33%
Any image generation tool included with the release (nano banana type thing, not gif's)
28%
Will Sonnet 5 reach #1 overall on LM Arena at any point within 14 days?
19%
Sonnet 4.x will be released, not Sonnet 5
8%
1.5M+ token context window
7%
Will Sonnet 5 be #1 overall-no-style-control on LM Arena when first added to the leaderboard
1.4%
Releases Feb 4th

All LMArena props resolve WITH style control unless otherwise stated, resolves to the next Sonnet Model, I used 5 for clarity, but any # counts

  • Update 2026-02-03 (PST) (AI summary of creator comment): For image generation tools: Must be a dedicated diffusion model (like Midjourney/Stable Diffusion), not general tools like GIF creation skills.

  • Update 2026-02-03 (PST) (AI summary of creator comment): This market will resolve based on default settings with style control enabled on LMArena.

  • Update 2026-02-03 (PST) (AI summary of creator comment): Creator may resolve the market at 10 PM ET instead of waiting until the official close date if Claude Sonnet 5 is not released within the next hour or two from the time of the comment.

  • Update 2026-02-03 (PST) (AI summary of creator comment): Creator will wait until the official close date to resolve the market, rather than resolving early at 10 PM ET on February 3rd.

  • Update 2026-02-04 (PST) (AI summary of creator comment): The creator will defer to @MarryBobinson's preference on how to resolve the "Releases before 3pm Feb 4th" answer (despite the typo "reseases").

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CLARIFICATION: the times are in PST for my markets, as that's where anthropic is

Did they vibe code their infra? What's going on?

CLARIFICATION: the times are in PST for my markets, as that's where anthropic is

bought Ṁ5 NO

@MarryBobinson how can it reseases? I think that release and reseases are two very different things.

Therefore, it should resolve no.

@Velaris ima say this is an obvious typo

@Velaris the convention on manifold is to resolve according to the obvious intent when intent and literal writing differ

ultimately though up to creator and if you wanna bet on their ultimate decision being NO lmk

@Bayesian I'm planning to resolve it; however @MarryBobinson wants me to

@JeromeHPowell Hopefully, that seems fair. I just don't want to get caught in the crossfire of resolution wars

@MarryBobinson is this before 2pm EST Feb 3? or on before 2pm on the day it is released?

bought Ṁ75 YES

@PeterBarnett im 96% sure it is for today, but @MarryBobinson can clarify

@bh good one

bought Ṁ10 YES

@Bayesian Yeah, great q, I'm not sure tbh, it would double opus which seems like a lot

bought Ṁ20 NO

@JeromeHPowell imo more relevant data is: sonnet 4.5 released with 128k iirc, but then around a month later they released a 1M context version

bought Ṁ10 YES

@JeromeHPowell x rumors said 1M iirc.

@bh yea i saw that, I bought a bit bc

@Bayesian What if it is 200k or whatever in web chat / Claude Code, but longer available only via API?

@EvanDaniel hmm, good q for @bh

@EvanDaniel whichever is longer is what the model’s capability is at. Client usually is lower than api bc artificial cost saving measure

@EvanDaniel Resolves YES if a >400k option is available at all, doesn’t need to be in Claude Code or web chat (though I expect the main selling point of long context will be reduced compaction frequency in Claude Code)

opened a Ṁ100 YES at 15% order

@realDonaldTrump 2 new limits up on this option as well

bought Ṁ750 YES
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