The Company That Complained Is Now Doing the Same Thing
In the fast-moving world of artificial intelligence, few things are as reliable as irony. OpenAI — which made headlines recently for publicly criticizing Anthropic's decision to restrict access to Mythos, its advanced cybersecurity AI model — has now done exactly the same thing with its own equivalent tool.
GPT-5.5 Cyber, OpenAI's dedicated cybersecurity testing model, will roll out initially only to what the company is calling "critical cyber defenders." That's a deliberately narrow pool — think government agencies, major infrastructure operators, and established security research organizations — rather than the broader developer community that typically gets early access to new OpenAI releases.
What Is GPT-5.5 Cyber?
GPT-5.5 Cyber is a specialized version of OpenAI's latest model family, fine-tuned specifically for cybersecurity applications. Tools like this can assist security professionals with tasks like identifying vulnerabilities, running penetration tests, and analyzing malware — capabilities that are enormously useful for defenders but could equally serve attackers in the wrong hands.
That dual-use nature is precisely what makes these models so contentious, and why both Anthropic and OpenAI have landed in the same place despite their public disagreement.
The Anthropic Spat
When Anthropic announced restrictions on Mythos — its own cybersecurity-focused AI — OpenAI's response was pointed. The company suggested that overly cautious access policies were paternalistic and that broader availability to the security community would ultimately benefit defenders more than attackers.
It was a familiar argument in AI circles: the idea that gatekeeping powerful tools does more harm than good because determined bad actors will find other means, while legitimate researchers get left behind.
Now, with GPT-5.5 Cyber, OpenAI is singing a different tune. The company appears to have concluded — as Anthropic did before it — that some capabilities are simply too sensitive to release without guardrails, regardless of the philosophical case for openness.
A Broader Industry Reckoning
The back-and-forth between the two AI giants reflects a genuine and unresolved tension in the industry. As AI models become more powerful, the question of who gets access to the most capable versions is no longer just a product decision — it's a security and policy question with real-world stakes.
Governments around the world are watching closely. Cybersecurity agencies in the United States, United Kingdom, and Canada have all flagged AI-assisted cyberattacks as a growing threat, and the prospect of highly capable, offensive-capable AI models being widely available has made policymakers nervous.
For now, both Anthropic and OpenAI seem to be converging on a similar answer: start narrow, monitor closely, and expand access incrementally. Whether that approach holds as competitive pressure mounts — and as rivals potentially less cautious about safety enter the space — remains to be seen.
What It Means Going Forward
For security professionals hoping to get their hands on GPT-5.5 Cyber, the wait may be frustrating but not indefinite. OpenAI has indicated this is a phased rollout, not a permanent restriction.
But the episode is a useful reminder that in AI, corporate positioning can shift quickly when the rubber meets the road. What's bad policy for a competitor has a way of becoming sound judgment once it's your own model on the line.
Source: TechCrunch
