head-to-head

Z.ai: GLM Flash Latest vs OpenAI: GPT-5.6 Sol

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

Z.ai: GLM Flash Latest OpenAI: GPT-5.6 Sol
Vendor~z-aiopenai
Quality Score100100
Benchmark Score-80.2
Input Price$0.07/M$2.00/M
Output Price$0.25/M$10.00/M
Context Window1,310,7201,050,000
Max Output131,072128,000
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index-77.5

Who wins by task?

TaskZ.ai: GLM Flash LatestOpenAI: GPT-5.6 Sol
SQL Generation 134 142
Code Review 132 146
Code Completion 131 119
Code Refactoring 136 148
Bug Fixing 136 150
Unit Test Generation 124 133
Code Documentation 131 136
Regex Writing 119 125
CI/CD Pipelines 120 129
Frontend Component Design 122 131
Data Analysis 124 135
CSV / Spreadsheet Cleanup 134 135
ETL Scripting 128 138
JSON Extraction 131 121
Bulk Data Labeling 129 118
OCR / Document Parsing 131 134
Table Extraction from PDFs 131 134
Long-Document Summarization 138 149
Short-Form Summarization 123 117
Blog Post Writing 122 130

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

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