R0057/2026-04-01/C018/SRC01

Research	R0057 — RLHF Yes-Men Claims v3
Run	2026-04-01
Claim	C018
Search	S01
Result	S01-R01
Source	SRC01

Anthropic and OpenAI sycophancy reduction announcements

Source

Field	Value
Title	Anthropic protecting well-being of users
Publisher	Anthropic; OpenAI
Author(s)	Anthropic; OpenAI
Date	2024-2026
URL	https://www.anthropic.com/news/protecting-well-being-of-users
Type	Vendor announcements and research

Summary

Dimension	Rating
Reliability	High
Relevance	High
Bias: Missing data	Low risk
Bias: Measurement	Low risk
Bias: Selective reporting	Low risk
Bias: Randomization	N/A — not an RCT
Bias: Protocol deviation	N/A — not an RCT
Bias: COI/Funding	Low risk

Rationale

Dimension	Rationale
Reliability	Vendor announcements and research from established institution/publication
Relevance	Directly addresses the claim under investigation
Bias flags	No significant bias concerns identified

Evidence Extracts

Evidence ID	Summary
SRC01-E01	Anthropic reports 70-85% sycophancy reduction in latest models; OpenAI reports substantial improvements in GPT-5