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Z.ai: GLM 5.3 Flash vs Meta: Muse Spark 1.2 Contributor

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

Z.ai: GLM 5.3 Flash Meta: Muse Spark 1.2 Contributor
Vendorz-aimeta
Quality Score100100
Benchmark Score97.4-
Input Price$0.07/M$0.10/M
Output Price$0.25/M$0.20/M
Context Window1,310,7201,048,576
Max Output131,072943,718
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio-✓
Benchmark Scores
ai_index94.8-
ai_index_agentic96.0-
ai_index_coding100.0-

Who wins by task?

TaskZ.ai: GLM 5.3 FlashMeta: Muse Spark 1.2 Contributor
SQL Generation 175 134
Code Review 170 132
Code Completion 133 131
Code Refactoring 166 136
Bug Fixing 186 136
Unit Test Generation 157 124
Code Documentation 145 131
Regex Writing 139 119
CI/CD Pipelines 147 120
Frontend Component Design 149 122
Data Analysis 176 124
CSV / Spreadsheet Cleanup 155 134
ETL Scripting 157 128
JSON Extraction 149 131
Bulk Data Labeling 135 129
OCR / Document Parsing 147 131
Table Extraction from PDFs 147 131
Long-Document Summarization 162 138
Short-Form Summarization 133 123
Blog Post Writing 143 122

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

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