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Z.ai: GLM 5.3 Flash (batch) vs Google: Gemini 3.5 Flash Lite

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-04.

Z.ai: GLM 5.3 Flash (batch) Google: Gemini 3.5 Flash Lite
Vendorz-aigoogle
Quality Score100100
Benchmark Score96.762.0
Input Price$0.15/M$0.30/M
Output Price$0.50/M$2.50/M
Context Window1,048,5751,048,576
Max Output943,71765,536
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio-✓
Benchmark Scores
ai_index94.861.8
ai_index_agentic96.044.8
ai_index_coding100.081.4

Who wins by task?

TaskZ.ai: GLM 5.3 Flash (batch)Google: Gemini 3.5 Flash Lite
SQL Generation 175 161
Code Review 170 157
Code Completion 133 132
Code Refactoring 166 156
Bug Fixing 186 166
Unit Test Generation 157 146
Code Documentation 145 140
Regex Writing 139 131
CI/CD Pipelines 147 137
Frontend Component Design 149 139
Data Analysis 176 157
CSV / Spreadsheet Cleanup 155 149
ETL Scripting 157 147
JSON Extraction 149 145
Bulk Data Labeling 135 133
OCR / Document Parsing 147 143
Table Extraction from PDFs 147 143
Long-Document Summarization 162 153
Short-Form Summarization 133 129
Blog Post Writing 143 135

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

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