Observed arrival · 2026-10-01

Stop Nerfing’s open letter on AI model changes

stop-nerfing.com Visit website

Editorial interest 79/100 Selection signal · not a rating of the site

A public letter asks major AI providers to give customers pinned model versions, changelogs, advance notice, and ways to track quality.

Landing page captured for the 2026-10-01 issue.

For: People building products on changing AI models
Worth noticing: Its examples distinguish infrastructure bugs, an acknowledged reasoning-effort trade-off, a GPT-4o rollback, and measured behavior changes across versions.

Field notes

The page separates its case into documented incidents, requested operating practices, and a legal argument citing EU Directive 2019/770, Article 19. Its examples include Anthropic's reported September 2025 infrastructure bugs, an April 2026 Claude Code reasoning-effort change, OpenAI's GPT-4o rollback, and a 2023 Stanford/UC Berkeley comparison. The letter says it does not accuse providers of intentional misconduct and credits companies that published postmortems.

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✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

◉HumanPersonal, local, civic, or handmade

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