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xAI: Grok 4.20 vs Qwen: Qwen3.5-35B-A3B

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-06-22.

xAI: Grok 4.20 Qwen: Qwen3.5-35B-A3B
Vendorx-aiqwen
Quality Score100100
Benchmark Score61.547.9
Input Price$1.25/M$0.14/M
Output Price$2.50/M$1.00/M
Context Window2,000,000262,144
Max Output-81,920
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--
Benchmark Scores
ai_index61.048.3
eqbench55.8-

Who wins by task?

TaskxAI: Grok 4.20Qwen: Qwen3.5-35B-A3B
SQL Generation 144 136
Code Review 150 135
Code Completion 122 130
Code Refactoring 153 135
Bug Fixing 154 139
Unit Test Generation 135 127
Code Documentation 141 130
Regex Writing 127 124
CI/CD Pipelines 131 123
Frontend Component Design 131 127
Data Analysis 136 131
CSV / Spreadsheet Cleanup 139 130
ETL Scripting 142 129
JSON Extraction 123 131
Bulk Data Labeling 120 129
OCR / Document Parsing 135 130
Table Extraction from PDFs 135 130
Long-Document Summarization 154 137
Short-Form Summarization 119 126
Blog Post Writing 132 124

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

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