Science Markets
Markets / ECS3 / Round 2

Round 2

One saved weekly assessment of Preindustrial Charney climate sensitivity exceeds 3 °C., kept as it was published. It is an estimate from three models reading the evidence, not proof the hypothesis holds, and it did not set any price.

The round
Published
Oct 26, 2026 10:13 AM EDT
Estimate
41%
Model spread
This round did not come from three live models, so it has no model spread to show.
Confident binary
No unanimous verdict this round.
Methodology
panel-v9
Round hash
b1678aca4a6bdfbda2adf671799124947a5a6a7bf4015820821a4b33f738bca5

The hash commits to this round's recorded bytes. It does not prove the wording is sound or that the science is right.

What each model said
OpenAI 0.38

local-fallback

No model provider is configured in this build, so this number is a deterministic placeholder around the market's prior score. It is not model output and should not be read as an assessment.

No sources recorded for this answer.

Anthropic 0.41

local-fallback

No model provider is configured in this build, so this number is a deterministic placeholder around the market's prior score. It is not model output and should not be read as an assessment.

No sources recorded for this answer.

xAI 0.44

local-fallback

No model provider is configured in this build, so this number is a deterministic placeholder around the market's prior score. It is not model output and should not be read as an assessment.

No sources recorded for this answer.

The round note and its sources

Round 2: score 0.41

Live panel did not return all three estimates (OpenAI, Anthropic, xAI failed or gave an unusable answer). A round is only live when all three are valid, so this round is a placeholder at the previous score rather than an average of two.

Audit bundle

No audit bundle is recorded for this round. A bundle from another round is not substituted for it.

Back to ECS3 · How the current round reads