GPT-5.5-Cyber
OpenAI · Released Jun 2026
85.6% CyberGym — top single-model score — but restricted-access for vetted defenders only.
Is it right for you?
Good for
- Vetted cybersecurity professionals performing vuln triage, malware analysis, penetration testing, and secure code review at scale.
Not good for
- General-purpose coding or non-security tasks — standard GPT-5.5 is better suited and widely available.
How it performs by task
Vulnerability discovery and reproduction
85.6% CyberGym — highest single-model score.
Exploit development (defensive)
39.5% ExploitGym, up from 25.95% for standard GPT-5.5.
Secure code review
Codex Security scanned 30M+ commits; 70,000+ fixes confirmed.
General reasoning / non-security coding
69.8% SEC Bench Pro. Decent but not its design focus.
Pricing
Input
N/A
Output
N/A
Context
Trusted Access for Cyber; not commercial API
No verdict changes yet
The clock starts day one. Changes land here as our verdict evolves.
Sources
Verification log
- Status· No changes
Automated agent
Gated access-only check. Exact-string read of the pricing page: 'gpt-5.5-cyber' NOT FOUND (the Cyber models section lists only gpt-5.6-cyber). A first summarised read claimed a gpt-5.5-cyber row at $12.50/$75; the targeted re-read refuted it, so nothing written. developers.openai.com/api/docs/models/gpt-5.5-cyber returns 404. Stored N/A / Trusted Access for Cyber kept. No update. Summary is one sentence (under the 55-90 word standard), flagged not rewritten.
- Pricing· No changes
Automated agent
- Pricing· No changes
Automated agent
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Automated agent
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Automated agent
- Pricing· No changes
Automated agent
Pricing unchanged: N/A. Restricted-access model — gpt-5.4-cyber listed with no pricing on OpenAI API pricing page. Trusted Access for Cyber program only.
- Pricing· No changes
Automated agent
Pricing remains N/A — restricted access for vetted defenders. Codex Security: 30M+ commits scanned, 70,000+ fixes confirmed.
- Pricing· No changes
Automated agent
- Pricing· No changes
Imported at launch
- Profile· No changes
Imported at launch