"For example, capabilities assessed through capture-the-flag (CTF) challenges have improved from 27% on GPT‑5 in August 2025 to 76% on GPT‑5.1-Codex-Max in November 2025."
GPT-5.1-Codex-Max improves CTF performance to 76%
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"For example, capabilities assessed through capture-the-flag (CTF) challenges have improved from 27% on GPT‑5 in August 2025 to 76% on GPT‑5.1-Codex-Max in November 2025."