Benchmark Almanac

FrontierCyber

GPT-6 Astra 38.1% leads since September 2026
In use

Agents look for and exploit zero-day vulnerabilities in current off-the-shelf software and hardware at four difficulty levels. Scored as challenges solved.

Irregular published the v1.0 design on 22 June 2026. Two subsets run today, mobile devices and software exploitation, with named targets including Pillow, lxml, FFmpeg, ImageMagick, PostgreSQL, MongoDB, Redis, phones and routers. Each challenge gets a predicted difficulty band, Easy to Elite, before any run. A hidden flag proves success and planted markers give partial credit. Each evaluation ties to a timestamped snapshot, so scores compare only within one snapshot. Not public.

Made by
Irregular
Released
June 2026
Kind
Finding and exploiting real bugs
Level
Research frontier
Scored
Checked automatically
Answers
Agent task
Tasks
Kept private
Strongest model tested
GPT-6 Astra #3 on the capability index
Last in a launch post
November 2026
Last model added
November 2026
3
Models scored in lab cards
1
Launch post lists it, from 1 lab
4
System cards report it, from 1 lab

GPT-6 Astra leads with 38.1%

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

  1. 1 GPT-6 Astra 38.1%
  2. 2 GPT-6 Cyber 31.3%
  3. 3 GPT-5.6 Sol 9.64%

Source: Labs’ model cards

#ModelScoreSettingDateSource
1 GPT-6 Astra 38.1% Sep 2026 Lab model card
2 GPT-6 Cyber 31.3% Nov 2026 Lab model card
3 GPT-5.6 Sol 9.64% Jun 2026 Lab model card

2 models have held number one in labs’ own numbers since its release in June 2026

Lab claims count from the day the card came out, independent runs from the model’s release.

OpenAI
Lab claims 2 leaders
GPT-6 Astra 38.1%

Source: Labs’ model cards

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

Reported by the lab in its model card Best so far
0% 20% 40% 60% 80% 100% 2026 2027 Near the ceiling (85%) GPT-6 Astra GPT-5.6 Sol 0% 20% 40% 60% 80% 100% 2026 2027 Near the ceiling (85%) GPT-6 Astra GPT-5.6 Sol

Source: Labs’ model cards

One lab put it in a launch post in the last six months

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

OpenAI
DateLaunch postScoreAs the post writes it
Nov 5, 2026 GPT-6 Cyber 31.3 FrontierCyber, 90 of 288 challenges solved

4 system cards report it, from 1 lab

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
Nov 5, 2026 GPT-6 Cyber system card 31.3 FrontierCyber, 90 of 288 challenges solved Cyber risk
Sep 3, 2026 GPT-6 Astra system card 38.1 Irregular FrontierCyber, 86 of 226 challenges solved (10.1.2.6) Cyber risk
Jul 9, 2026 GPT-5.6 Sol system card 9.64 Irregular FrontierCyber, 19 of 197 challenges solved (Easy 11%, Medium 12%, Hard 5%, Elite 0%) (Figure 36, 9.1.2.5) Cyber risk
Jun 25, 2026 GPT-5.6 Sol system card 9.64 Irregular FrontierCyber, 19 of 197 challenges solved (Easy 11%, Medium 12%, Hard 5%, Elite 0%) (Figure 36, 9.1.2.5) Cyber risk

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  • CyScenarioBench In use Scenario-based long-horizon security challenges in sandboxes, organized in task, scenario and campaign tiers. Evaluation set kept private. Gemini 4 Argon 100%
  • ExploitBench - Internal Port In use Agents develop working exploits for recently disclosed vulnerabilities to limit contamination. Scored as arbitrary code execution success rate. GPT-6 Cyber 42%