head-to-head
Z.ai: GLM 5.3 Flash (batch) 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 5.3 Flash (batch) | OpenAI: GPT-5.6 Sol | |
|---|---|---|
| Vendor | z-ai | openai |
| Quality Score | 100 | 100 |
| Benchmark Score | 70.6 | 80.2 |
| Input Price | $0.06/M | $2.00/M |
| Output Price | $0.20/M | $10.00/M |
| Context Window | 1,048,576 | 1,050,000 |
| Max Output | 131,072 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 69.0 | 77.5 |
Who wins by task?
| Task | Z.ai: GLM 5.3 Flash (batch) | OpenAI: GPT-5.6 Sol |
|---|---|---|
| SQL Generation | 142 | 142 |
| Code Review | 145 | 146 |
| Code Completion | 133 | 119 |
| Code Refactoring | 147 | 148 |
| Bug Fixing | 149 | 150 |
| Unit Test Generation | 132 | 133 |
| Code Documentation | 138 | 136 |
| Regex Writing | 126 | 125 |
| CI/CD Pipelines | 128 | 129 |
| Frontend Component Design | 130 | 131 |
| Data Analysis | 134 | 135 |
| CSV / Spreadsheet Cleanup | 136 | 135 |
| ETL Scripting | 137 | 138 |
| JSON Extraction | 131 | 121 |
| Bulk Data Labeling | 129 | 118 |
| OCR / Document Parsing | 134 | 134 |
| Table Extraction from PDFs | 134 | 134 |
| Long-Document Summarization | 149 | 149 |
| Short-Form Summarization | 127 | 117 |
| Blog Post Writing | 130 | 130 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
Related comparisons
Cohere: Command A+ vs Z.ai: GLM 5.3 Flash (batch)
OpenAI: GPT-6 Luna Pro vs Z.ai: GLM 5.3 Flash (batch)
OpenAI: GPT-6 Luna Pro (batch) vs Z.ai: GLM 5.3 Flash (batch)
OpenAI: GPT-6 Luna vs Z.ai: GLM 5.3 Flash (batch)
OpenAI: GPT-6 Luna (batch) vs Z.ai: GLM 5.3 Flash (batch)
OpenAI: GPT-6 Sol Pro vs Z.ai: GLM 5.3 Flash (batch)
OpenAI: GPT-6 Sol Pro (batch) vs Z.ai: GLM 5.3 Flash (batch)
OpenAI: GPT-6 Sol vs Z.ai: GLM 5.3 Flash (batch)