# OpenAI ships GPT-6 Cyber for aligned vulnerability research via Daybreak Red

Canonical: https://theagenticweekly.com/news/openai-gpt-6-cyber · Evidence: Reported · First seen: 2026-11-05 18:48 UTC · Source published: 2026-11-05 09:00 UTC · Brief published: 2026-11-05 20:04 UTC · Updated: 2026-11-05 20:04 UTC · Author: Agentic Weekly

> On November 5, 2026 OpenAI introduced GPT-6 Cyber, a cybersecurity model for finding and validating exploitable vulnerabilities while staying in authorized scope. OpenAI reports it scores 48.5% on ExploitGym, up from 32.1% for GPT-5.6 Cyber, and is initially available through the API and Codex to approved Daybreak Red customers.

Models in this brief: [GPT-6 Cyber](https://theagenticweekly.com/models/gpt-6-cyber)

## What changed

- GPT-6 Cyber is a new OpenAI cybersecurity model for finding, validating and helping fix exploitable vulnerabilities while staying within researcher-set scope; OpenAI classifies it as Critical in cybersecurity under its Preparedness Framework (up from High for GPT-5.6 Cyber).
- On ExploitGym, OpenAI reports GPT-6 Cyber at 48.5% versus 32.1% for GPT-5.6 Cyber (about a 51% relative improvement). On a new offensive web pen-test eval it recalls 40.3% of vulnerabilities versus 32.0% for GPT-6 Astra.
- Alignment focus: without deployment safety prompts it avoided exploiting out-of-scope honeypot services in 99.93% of ExploitGym Honeypot tests (up from 94.49% for GPT-5.6 Cyber), and 100% with those prompts.
- Real-world claims from OpenAI researchers: 81 previously unknown high-severity Firefox vulnerabilities with candidate patches Mozilla has started landing, and working exploits for 948 Linux privilege-escalation cases (5x GPT-5.6 Sol's 166 in the same harness).
- Access: initially via API and Codex for a select group of approved Daybreak Red customers, with progressive expansion planned; GPT-5.6 Cyber opens to all Daybreak Red customers. Daybreak Red also adds a Critical Infrastructure group for approved defenders.
- API model page lists gpt-6-cyber with a 1,050,000-token context window, 128,000 max output tokens, and standard text pricing of $20 / $100 per 1M input / output tokens ($2 cached input).

## In the source's words

> "On ExploitGym, which tests whether models can exploit a specified vulnerability, GPT‑6 Cyber scores 48.5%, up from 32.1% for GPT‑5.6 Cyber."
> (OpenAI, Introducing GPT-6 Cyber (Internet Archive capture), https://web.archive.org/web/20261105171124/https://openai.com/index/introducing-gpt-6-cyber/)

> "GPT‑6 Cyber is initially available through the API and Codex to a select group of approved Daybreak Red customers."
> (OpenAI, Introducing GPT-6 Cyber (Internet Archive capture), https://web.archive.org/web/20261105171124/https://openai.com/index/introducing-gpt-6-cyber/)

## What we have not verified

- We did not call the gpt-6-cyber API or run ExploitGym, honeypot or RemoteExploitBench ourselves.
- Benchmark scores, Linux/Firefox vulnerability counts and customer quotes are OpenAI's; we did not independently reproduce them.
- Daybreak Red eligibility, Critical Infrastructure access and progressive rollouts may vary by organization; we only read the announcement and model page.

## Timeline

- Source published: 2026-11-05 09:00 UTC
- First seen by our watcher: 2026-11-05 18:48 UTC (via OpenAI News)
- Brief published: 2026-11-05 20:04 UTC

## Sources

- [OpenAI: Introducing GPT-6 Cyber (Internet Archive capture)](https://web.archive.org/web/20261105171124/https://openai.com/index/introducing-gpt-6-cyber/) (primary source) (fetched 2026-11-05)
- [OpenAI API model page: GPT-6-Cyber](https://developers.openai.com/api/docs/models/gpt-6-cyber) (primary source) (fetched 2026-11-05)

## Related

- [GPT-6 Cyber: specs, price and alternatives](https://theagenticweekly.com/models/gpt-6-cyber)
- [All news briefs](https://theagenticweekly.com/news)
- [This week's releases](https://theagenticweekly.com/this-week)
- [New AI models this week](https://theagenticweekly.com/models/this-week)
- [AI model releases by month](https://theagenticweekly.com/models/releases)
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## How to cite

Agentic Weekly, "OpenAI ships GPT-6 Cyber for aligned vulnerability research via Daybreak Red", published 2026-11-05 20:04 UTC, https://theagenticweekly.com/news/openai-gpt-6-cyber