Pyyan / Compare / GPT-5.6-Cyber vs GPT-6 Astra
GPT-5.6-Cyber vs GPT-6 Astra
2 of 5Language Models · verified 5 Sept 2026
GPT-5.6-CyberOpenAIcurrentGPT-6 AstraOpenAIcurrent| Specification | GPT-5.6-Cyber | GPT-6 Astra |
|---|---|---|
| Summary | Trained to find zero-days and chain exploits. Vetted applicants only. | Saturates three of the benchmarks it reports, and ships disabled for enterprise. |
| Context | 400K | 1.05M |
| Input ($/Mtok) | Not published | $10 |
| Output ($/Mtok) | Not published | $50 |
| Licence | Proprietary, vetted access | Proprietary |
| Max output | Not published | 128K |
| Parameters | Not published | Not published |
| Released | 10 Aug 2026 | 3 Sep 2026 |
| Model ID | gpt-5.6-cyber | gpt-6-astra |
| Category | Language Models | Language Models |
| Official | — | — |
Highlighted rows are where these differ.
GPT-5.6-Cyber
- Built on GPT-5.6 Sol and trained for finding zero-days and building exploit chains
- Completes 95% of exploit-chain, privilege-escalation and auth-bypass prompts, against 1.5% for Sol
- Reachable only through Daybreak Red, the applicant-vetted tier of OpenAI's defender programme
Best for authorised security research.
GPT-6 Astra
- 97.6% on FrontierMath Tier 4, 99.9% on ARC-AGI-3 and 100% on ExploitBench
- Above 272K input tokens the whole request reprices: input and cache at 2x, output at 1.5x
- Rolls out to OpenAI's Daybreak cyber programme first, and arrives switched off for enterprise
Best for hard reasoning and computer use.