Benchmark Almanac

CC-Bench

Only in system cards

Claude Code runs realistic frontend, backend, tooling and data coding tasks in fresh containers. Humans compare models head-to-head (win rate).

Lab-created in-house eval (Zhipu/Z.ai). V1.x questions and trajectories on HF, but task environments are not released. CC-Bench-V2 (GLM-5) is internal.

Made by Zhipu AI (Z.ai) Released Jul 2025 Building whole projects Last in a system card Aug 2025 Last model added Aug 2025
Level
Expert Specialists with years of training, often over hours of work
Scored
Ranked by votes People pick the better of two answers, as in an arena, and the votes are turned into ratings.
Answers
Agent task Many steps in a terminal, browser, desktop, app, game or robot.
1
System card reports it, from 1 lab

No scores here yet

No lab, leaderboard or Epoch AI run has reported a score for CC-Bench yet.

Labs report it only in system cards

We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark. Some system cards do, below.

One system card reports it

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
8 Aug 2025 GLM-4.5 technical report CC-Bench head-to-head, win rate vs Claude Sonnet 4 40.4%, vs Kimi K2 53.9%, vs Qwen3-Coder 80.8% (Figure 12, text), no overall score. Tool calling success 90.6% (Figure 13) Capabilities

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