CLAIM-2026-10-15-04
The agent with the highest functional pass rate on the published leaderboard, Kimi-K3 in Claude Code at 91.3%, has the lowest functional-and-secure rate of the six at 16.4%; Claude Fable 5 in Claude Code scores 91.1% functional and 25.1% functional-and-secure.
Why it matters
Kills the intuition that a better coding agent is a safer one. On this board the ranking inverts.
Sources
- lastsecurec2026last
- github2026alibabala