head-to-head

OpenAI: GPT-5.4 vs Qwen: Qwen3.5-27B

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

OpenAI: GPT-5.4 Qwen: Qwen3.5-27B
Vendoropenaiqwen
Quality Score100100
Benchmark Score80.935.5
Input Price$2.50/M$0.20/M
Output Price$15.00/M$1.56/M
Context Window1,050,000262,144
Max Output128,00065,536
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index64.337.8
eqbench82.4-

Who wins by task?

TaskOpenAI: GPT-5.4Qwen: Qwen3.5-27B
SQL Generation 145 135
Code Review 154 133
Code Completion 120 129
Code Refactoring 157 133
Bug Fixing 158 137
Unit Test Generation 137 125
Code Documentation 140 129
Regex Writing 126 123
CI/CD Pipelines 133 121
Frontend Component Design 133 126
Data Analysis 138 129
CSV / Spreadsheet Cleanup 139 129
ETL Scripting 145 127
JSON Extraction 120 131
Bulk Data Labeling 116 129
OCR / Document Parsing 136 130
Table Extraction from PDFs 136 130
Long-Document Summarization 157 135
Short-Form Summarization 117 125
Blog Post Writing 133 123

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

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