OpenAI and Anthropic flagged for blocking reverse-engineering tool; OpenAI calls it accidental

Reddit user @kroggens revealed that developer AbhinavXJ's "Reverse Engineer Anything (REA)" tool was blocked while attempting to reverse engineer a smart TV suspected of spying on users: Claude reportedly refused/blocked the requests about a day later, with similar blocks occurring on OpenAI's side. The incident sparked wide discussion on X, and OpenAI responded that the blocks were mostly unintentional, that fixes are underway, and that there is no ban on reverse engineering.

Confirmed

• On October 25, @kroggens first exposed the incident: the REA tool was blocked by Claude (about a day later) and by OpenAI models while reverse engineering the smart TV's surveillance behavior.
• Blogger @esrtweet relayed rumors that OpenAI and Anthropic had added restrictions to their models, blocking users trying to use them to clean junkware and spyware from their TVs.
• An OpenAI employee (relayed by @tszzl) responded: most of these blocks are unintentional, stemming from decision boundaries that are hard to define; it's not a ban on using Codex for reverse engineering, and the issue is being fixed.

Controversy and Criticism

• Open-source pioneer Eric S. Raymond publicly slammed OpenAI and Anthropic, saying the models have been saddled with odd restrictions that prevent paying subscribers from cleaning spyware and crapware off their own TVs; he warned that such arbitrary restrictions effectively protect bad companies, undermine the value of paid subscriptions, and push users toward Chinese open-source models.
• @esrtweet and @tszzl debated the guardrail issue: @esrtweet argued that if guardrails aren't smart enough to avoid blocking legitimate requests, they amount to a de facto ban on those use cases; @tszzl reiterated that the blocks were accidental and are being fixed.

Why It Matters

• The incident touches on the boundary problem of AI safety guardrails "collateral-blocking" legitimate security research: reverse engineering surveillance software and removing malware are defensive uses, yet may be blocked wholesale by guardrail rules.
• The warning from Raymond and @esrtweet about "users fleeing to Chinese open-source models" reflects paying users' frustration with restricted model capabilities and could reshape the competitive landscape for commercial models.

2026-10-25 ~ 2026-10-26 · 5 related posts

Full story(3 episodes)→

• Episode 1: Claude Quietly Restricts Reverse Engineering While GPT-6 Complies(2026-10-25, 4 posts)
• Episode 2: OpenAI and Anthropic flagged for blocking reverse-engineering tool; OpenAI calls it accidental(2026-10-25, 5 posts)
• Episode 3: OpenAI and Anthropic spark debate by blocking reverse engineering requests(2026-10-26, 4 posts)

• [source] OpenAI and Anthropic reportedly blocked REA tool reverse engineering privacy-invading smart TVs — kroggens · 2026-10-25
• [source] Rumor: OpenAI and Anthropic block users from using models to remove TV spyware — esrtweet · 2026-10-26
• [source] OpenAI says Codex reverse-engineering blocks are accidental, fix underway — tszzl · 2026-10-26
• Anthropic admits Codex safety blocks were mostly accidental and are being fixed — esrtweet · 2026-10-26
• OpenAI's Roon: Codex has no reverse-engineering ban; TV spyware blocks accidental — RexDouglass · 2026-10-26