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Qwen: Qwen3.8 Flash vs Z.ai: GLM 5.3 Flash

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-27.

Qwen: Qwen3.8 Flash Z.ai: GLM 5.3 Flash
Vendorqwenz-ai
Quality Score100100
Benchmark Score-97.4
Input Price$0.16/M$0.07/M
Output Price$0.47/M$0.25/M
Context Window1,000,0001,310,720
Max Output131,072131,072
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index-94.8
ai_index_agentic-96.0
ai_index_coding-100.0

Who wins by task?

TaskQwen: Qwen3.8 FlashZ.ai: GLM 5.3 Flash
SQL Generation 133 175
Code Review 132 170
Code Completion 131 133
Code Refactoring 136 166
Bug Fixing 136 186
Unit Test Generation 124 157
Code Documentation 131 145
Regex Writing 119 139
CI/CD Pipelines 120 147
Frontend Component Design 122 149
Data Analysis 124 176
CSV / Spreadsheet Cleanup 133 155
ETL Scripting 128 157
JSON Extraction 131 149
Bulk Data Labeling 129 135
OCR / Document Parsing 131 147
Table Extraction from PDFs 131 147
Long-Document Summarization 137 162
Short-Form Summarization 123 133
Blog Post Writing 121 143

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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