GLM-5.3-Flash
- Made by
- Z.ai
- Released
- Announced in
- GLM-5.3-Flash: Frontier Intelligence, Flash Costz.ai
- Event
- GLM-5.3-Flash
- API record
- /api/v1/models/glm-5-3-flash
Benchmark results
| Benchmark | Score | Source check |
|---|---|---|
| Humanity's Last ExamWith tools · full set; 300,000-token context with context management; GPT-5.6 Luna judge | 55.3% | |
| AutomationBenchAutomationBench v1.0.6 with a fix for null-type handling | 48.8% | |
| DeepSWE v1.1mini-swe-agent harness; 6h timeout; 400K context | 63.4% |
Sources
Reported by Z.ai
- GLM-5.3-Flash: Frontier Intelligence, Flash Costz.ai · 26 Aug 2026

Our capture of the source - GLM-5.3 and the spread of advanced cyber capabilitiesanthropic.com · 29 Sep 2026

Original image