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Z.ai: GLM 5.3 Flash vs Google: Gemini 3.6 Flash (batch)

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

Z.ai: GLM 5.3 Flash Google: Gemini 3.6 Flash (batch)
Vendorz-aigoogle
Quality Score100100
Benchmark Score97.484.4
Input Price$0.07/M$0.38/M
Output Price$0.25/M$1.88/M
Context Window1,310,7201,048,576
Max Output131,07265,536
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio-✓
Benchmark Scores
ai_index94.885.1
ai_index_agentic96.066.8
ai_index_coding100.0100.0

Who wins by task?

TaskZ.ai: GLM 5.3 FlashGoogle: Gemini 3.6 Flash (batch)
SQL Generation 175 170
Code Review 170 165
Code Completion 133 133
Code Refactoring 166 163
Bug Fixing 186 178
Unit Test Generation 157 153
Code Documentation 145 143
Regex Writing 139 136
CI/CD Pipelines 147 143
Frontend Component Design 149 145
Data Analysis 176 168
CSV / Spreadsheet Cleanup 155 154
ETL Scripting 157 153
JSON Extraction 149 148
Bulk Data Labeling 135 135
OCR / Document Parsing 147 146
Table Extraction from PDFs 147 146
Long-Document Summarization 162 159
Short-Form Summarization 133 131
Blog Post Writing 143 140

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

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