argumentA line of reasoning from premises to a conclusion. Like a claim, it belongs to no one who makes it.constitution →

The argument from non-AI causes early in the period

againstThis argument, if it holds, weighs against the claim.constitution →AI-assisted research and development caused most of Anthropic's capability acceleration since October 2025.

The argument

Non-AI factors likely drove the late-2025 acceleration, and Anthropic's pre-2025 AECI growth rate was below the industry frontier, so part of the measured acceleration may be catch-up. METR itself expects the cumulative AI share since October 2025 to be lower than the instantaneous October 2026 share. The claim covers the whole period, so these early non-AI contributions may leave AI's cumulative share short of a majority.

Does it work?

Does it follow?: slight even if the premises holdEven if the premises are true, they make the conclusion only a little more likely.constitution →
Do the premises hold?: 1 supported

Granting that linked claim holds and that some catch-up occurred, the cumulative AI share is pulled below the roughly 80% current figure. The argument does not show that it falls below half: that depends on how large the late-2025 non-AI contribution was relative to the later AI-driven acceleration, and the figures that would show this were redacted.

Premises

SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →Non-AI factors likely contributed to Anthropic's capability acceleration in late 2025.

Where it is made

Passages where sources make, criticize or mention this argument. They record where it appears, not how strong it is, and none has precedence over another.

No source is recorded as making it.