SWE-bench Live C# (28 tasks, Claude Code): leaderboard

SWE-bench-Live's C# split (Microsoft, 2026 multi-language update): recent GitHub issues from C# repositories, built into runnable environments by the RepoLaunch pipeline and graded by the repository's tests. This board is the 28-task snapshot under the Claude Code agent, scored as the percentage of tasks resolved; higher is better. The split grows, so each snapshot size is its own board.

Metric: Resolved rate (%). Source: swe-bench-live.github.io. Saturation forecast: Around 2029. 3 models tracked.

Top models

#ModelScoreOverall rank
1Claude Sonnet 4.514.29#142
2GPT-5.2 (Medium)14.29#110 (GPT-5.2)
3DeepSeek V3.1 Terminus14.29#220

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=swe-bench-live-c-sharp-28-tasks-claude-code · How It Works · Data refreshed daily, snapshot 2026-10-20.