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Z.ai: GLM 5.3 Flash vs Qwen: Qwen3.8 27B

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

Z.ai: GLM 5.3 Flash Qwen: Qwen3.8 27B
Vendorz-aiqwen
Quality Score100100
Benchmark Score97.490.0
Input Price$0.07/M$0.42/M
Output Price$0.25/M$2.55/M
Context Window1,310,7201,000,000
Max Output131,072131,072
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index94.885.8
ai_index_agentic96.083.9
ai_index_coding100.0100.0

Who wins by task?

TaskZ.ai: GLM 5.3 FlashQwen: Qwen3.8 27B
SQL Generation 175 172
Code Review 170 167
Code Completion 133 133
Code Refactoring 166 164
Bug Fixing 186 181
Unit Test Generation 157 155
Code Documentation 145 143
Regex Writing 139 137
CI/CD Pipelines 147 145
Frontend Component Design 149 147
Data Analysis 176 172
CSV / Spreadsheet Cleanup 155 154
ETL Scripting 157 154
JSON Extraction 149 148
Bulk Data Labeling 135 134
OCR / Document Parsing 147 147
Table Extraction from PDFs 147 147
Long-Document Summarization 162 160
Short-Form Summarization 133 132
Blog Post Writing 143 141

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

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