Claude Opus 5.5 vs GLM 5.3 (Venice)
On the 9 use cases both models ran, GLM 5.3 (Venice) won 8 to 1 (better outcome first, then lower cost).
Pass rate: Claude Opus 5.5 100% (9 runs) vs GLM 5.3 (Venice) 89% (9 runs). Average cost per run: $0.18 vs $0.05.
| Metric | Claude Opus 5.5 | GLM 5.3 (Venice) |
|---|---|---|
| Runs on shared use cases | 9 | 9 |
| Pass rate | 100% (9/9) | 89% (8/9) |
| Avg cost per run | $0.18 | $0.05 |
| Avg wall time | 39s | 1m |
| Step-ins per run | 0.00 | 0.00 |
| Use cases won | 1 | 8 |
Use case by use case
- Analyze five months of AI coding-agent session logs: GLM 5.3 (Venice) better (pass 100% vs 100%)
- Build a landing page from extracted design tokens: GLM 5.3 (Venice) better (pass 100% vs 100%)
- Diagnose why GitHub Actions stopped running: GLM 5.3 (Venice) better (pass 100% vs 100%)
- Fill and submit job applications from a resume: GLM 5.3 (Venice) better (pass 100% vs 100%)
- Fix three bugs in a Python repo so its tests pass: GLM 5.3 (Venice) better (pass 100% vs 100%)
- Implement a spec exactly, with nothing extra: GLM 5.3 (Venice) better (pass 100% vs 100%)
- Let agents run growth for a meeting-notetaker app: GLM 5.3 (Venice) better (pass 100% vs 100%)
- One-shot a Minecraft-style voxel game in three.js: Claude Opus 5.5 better (pass 100% vs 0%)
- Research use cases and build pitch slides: GLM 5.3 (Venice) better (pass 100% vs 100%)
Only use cases both models ran are compared; all settings of each model are grouped. How we score.