OpenAI rolls out GPT-5.4-Cyber, a fine-tuned GPT-5.4 variant for defensive cybersecurity use cases, to some participants of its Trusted Access for Cyber program
OpenAI is letting a select group of users access a new artificial intelligence model that's meant to be more adept …
Bloomberg Rachel Metz
Related Coverage
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Discussion
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@openai
@openai
on x
For years, we've been building our cyber defense program on the principles of democratized access, iterative deployment, and ecosystem resilience. As model capabilities advance, our approach is to scale cyber defense in lockstep: broadening access for legitimate defenders while
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@openai
@openai
on x
We're expanding Trusted Access for Cyber with additional tiers for authenticated cybersecurity defenders. Customers in the highest tiers can request access to GPT-5.4-Cyber, a version of GPT-5.4 fine-tuned for cybersecurity use cases, enabling more advanced defensive workflows.
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@nrehiew_
@nrehiew_
on x
This is quite different from Mythos and is nowhere near as interesting imo This is a fine-tuned version of GPT-5.4 specifically for cybersecurity. Mythos was never explicitly trained for this purpose, and its capabilities naturally emerged [image]
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@mattshumer_
Matt Shumer
on x
OpenAI fine-tuned GPT-5.4 for cybersecurity, with fewer refusals, new capabilities like binary reverse engineering, and is rolling it out to verified defenders. Very different approach than Anthropic is taking with Mythos. We'll see how each plays out! [image]
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@chatgpt21
Chris
on x
🚨OpenAI just dropped GPT-5.4-Cyber! a more cyber-permissive GPT-5.4 for trusted defenders, with lower refusal boundaries for legitimate security work and support for things like binary reverse engineering. The new rollout model they'll be implementing from now on: first they [ima…
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@andrewcurran_
Andrew Curran
on x
New model: GPT-5.4-Cyber 'Today we're expanding this program by introducing additional tiers of access for users willing to work with OpenAI to authenticate themselves as cybersecurity defenders. Customers in the highest tiers will get access to GPT-5.4-Cyber, a model purposely
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@miles_brundage
Miles Brundage
on x
I'm sure some people will make a lot of hay out of the distinction between this and Mythos but in the big scheme of things, these are similar philosophies - https://x.com/... [image]
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@morqon
Morgan
on x
“our goal is to make these tools as widely available as possible while preventing misuse. we design mechanisms which avoid arbitrarily deciding who gets access for legitimate use and who doesn't” 👀