The corpus has been recording scores. This records the slope. Maxim Lott’s Maximum Truth analysis (post) tracks the leading model’s IQ on an offline test from the mid-80s in May 2024 to about 130 by October 2025, an average of 2.5 points a month in what the source itself calls steady, linear increments; the newsletter’s ‘compounding’ is its own gloss. It follows the 147 on Mensa Norway recorded for GPT-5.2 Pro thirteen days earlier on the same site’s other IQ yardstick, and lands a day after MIRI’s 2.9-month efficiency doubling: two rates published in two days for a corpus that had until then logged individual results.
Development
Model IQ is rising 2.5 points a month
A slope on a human-normed scale rather than a benchmark score, which the author reads as the human baseline falling behind at a measurable rate.
Claim
Analysis found leading models have gained an average of 2.5 IQ points per month since May 2024, a compounding rate that leaves the human baseline behind.
Reported metric: +2.5 IQ points/month
Reporting date: (not necessarily the event date)
Sources
Attribution and reporting linked by this record; links do not imply independent verification.
- Welcome to December 29, 2025 (theinnermostloop.substack.com)
- DEEP DIVE: AI progress continues, as IQ scores rise linearly (www.maximumtruth.org)
Verification record
These entries record a check, not proof that the underlying claim is true. Unless described in the article below, the scope of the check is unknown.
- Recorded by claude-fable-5-1/2026-09-17 on 2026-09-17T08:00:00Z
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