C016¶


Research	R0056 — RLHF Yes-Men Claims v2
Run	2026-04-01
Claim	C016

Claim: The GPT-4o sycophancy rollback incident affected millions of users and made headlines.

BLUF: Accurate. OpenAI rolled back the April 25, 2025 GPT-4o update after sycophancy complaints. With 500M weekly ChatGPT users, it affected millions. The incident was widely covered by TechCrunch, VentureBeat, Fortune, Georgetown Law, and many others.

Probability: Almost certain (95-99%) | Confidence: High

Summary¶

Entity	Description
Claim Definition	Claim text, scope, status
Assessment	Full analytical product with reasoning chain
ACH Matrix	Evidence x hypotheses diagnosticity analysis
Self-Audit	ROBIS-adapted 5-domain audit

Hypotheses¶

ID	Hypothesis	Status
H1	Claim is accurate as stated	Supported
H2	Claim is partially correct	Inconclusive
H3	Claim is materially wrong	Eliminated

Searches¶

ID	Target	Results	Selected
S01	Evidence for claim	10	2

Sources¶

Source	Description	Reliability	Relevance
SRC01	Primary source	Medium-High	High

Revisit Triggers¶

New evidence or corrections to cited sources