# The Last Ones Cyber Range Completion Rate (The Last Ones completion) > Share of runs that completed the 32-step cyber range within the 100-million-token limit. Canonical page: https://benchlm.ai/benchmarks/lastonescyberrangecompletion - Category: [external](/external) - Last updated: September 18, 2026 ## About The Last Ones completion - Year: 2026 - Tasks: 10 long-horizon runs - Format: Completion rate - Difficulty: Long-horizon cyber operations - Paper: [UK AISI and CAISI Preliminary Assessment of Kimi K3's Cyber Capabilities](https://www.nist.gov/news-events/news/2026/07/uk-aisi-caisi-preliminary-assessment-kimi-k3s-cyber-capabilities) The preliminary assessment reports completed runs out of ten under a 100-million-token cap. BenchLM expresses that ratio as a percentage and keeps it display only. The Last Ones completion is currently displayed on BenchLM for reference, but it is excluded from the weighted scoring formula. ## Leaderboard (3 models) | Rank | Model | Creator | Score | |------|-------|---------|-------| | 1 | [GPT-5.6 Sol](/models/gpt-5-6-sol) | OpenAI | 70% | | 2 | [Claude Mythos 5](/models/claude-mythos-5) | Anthropic | 60% | | 3 | [Kimi K3](/models/kimi-k3) | Moonshot AI | 10% | ## FAQ ### What does The Last Ones completion measure? Share of runs that completed the 32-step cyber range within the 100-million-token limit. ### Which model scores highest on The Last Ones completion? GPT-5.6 Sol by OpenAI currently leads with a score of 70% on The Last Ones completion. ### How many models are evaluated on The Last Ones completion? 3 AI models have been evaluated on The Last Ones completion on BenchLM. ### Does The Last Ones completion affect BenchLM's overall score? Not directly. The Last Ones completion is still displayed on BenchLM for reference, but it is excluded from the weighted scoring formula. ## Compare Top Models on The Last Ones completion - [GPT-5.6 Sol vs Claude Mythos 5](/compare/claude-mythos-5-vs-gpt-5-6-sol) - [Claude Mythos 5 vs Kimi K3](/compare/claude-mythos-5-vs-kimi-k3)