SkillEvolBench (Curated-Static) - Deployment Success: leaderboard

Skill reuse by coding agents on SkillEvolBench (Lei et al., 2026): 180 verifier-scored tasks in six environments such as code repair, API orchestration and document transformation, each model running in its vendor agent harness (Claude Code, Codex CLI or Gemini CLI). The agent starts from fixed, deliberately incomplete curated skills that are never revised. After the acquisition tasks the library is frozen, and the board scores the 90 deployment tasks, which embed a procedure in a broader request, add shortcut traps or require composing skills; success rate in percent, higher is better.

Metric: Frozen deployment success rate (%; ESR, share of the 90 context-shift, adversarial and composition tasks, 30 of each, solved with the environment's frozen skill library; fixed gap-exposed curated skills; verifier-scored). Source: arxiv.org. Saturation forecast: Around July 2027. 10 models tracked.

Top models

#ModelScoreOverall rank
1Claude Sonnet 4.536.7#244
2Gemini 3.1 Pro (Preview)35.6#91
3Claude Sonnet 4.635.6#158
4Claude Opus 4.634.4#100
5Claude Opus 4.534.4#152
6GPT-5.432.2#121
7Gemini 3 Flash32.2#159
8GPT-5.3 Codex32.2#114
9GPT-5.2 Codex30#185
10Gemini 2.5 Pro18.9#262

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=skillevolbench-curated-static-deployment-success · How It Works · Data refreshed daily, snapshot 2026-11-12.