SpaceXAI: Grok 4.20 vs Qwen: Qwen3.5-122B-A10B
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| SpaceXAI: Grok 4.20 | Qwen: Qwen3.5-122B-A10B | |
|---|---|---|
| Vendor | x-ai | qwen |
| Quality Score | 100 | 100 |
| Benchmark Score | 56.5 | 54.9 |
| Input Price | $1.25/M | $0.26/M |
| Output Price | $2.50/M | $2.08/M |
| Context Window | 2,000,000 | 262,144 |
| Max Output | 1,800,000 | 65,536 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 61.0 | 53.3 |
| ai_index_agentic | - | 34.2 |
| ai_index_coding | - | 75.4 |
| eqbench | 45.7 | - |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Qwen3.5-122B-A10B costs $0.78 and Grok 4.20 costs $1.88, so Qwen3.5-122B-A10B is about 2.4 times cheaper for the same work.
Grok 4.20 reads up to 2,000,000 tokens at once, roughly 3,000 pages of text, against about 393 pages for Qwen3.5-122B-A10B.
Only Qwen3.5-122B-A10B offers video input.
On our blended benchmark score Grok 4.20 leads 56.5 to 54.9.
Across the 20 tasks where they differ, Grok 4.20 scores higher on 6 (Code Review, Code Refactoring, Code Documentation and others), Qwen3.5-122B-A10B on 14 (SQL Generation, Code Completion, Bug Fixing and others).
Grok 4.20 was released in March 2026 and Qwen3.5-122B-A10B in February 2026.
Pick Grok 4.20 if you need long documents or benchmark performance; pick Qwen3.5-122B-A10B if you need lower cost, video input or the stronger all-round task scores.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.
Who wins by task?
| Task | SpaceXAI: Grok 4.20 | Qwen: Qwen3.5-122B-A10B |
|---|---|---|
| SQL Generation | 144 | 155 |
| Code Review | 149 | 148 |
| Code Completion | 121 | 129 |
| Code Refactoring | 151 | 145 |
| Bug Fixing | 153 | 156 |
| Unit Test Generation | 134 | 140 |
| Code Documentation | 140 | 133 |
| Regex Writing | 127 | 129 |
| CI/CD Pipelines | 130 | 132 |
| Frontend Component Design | 131 | 137 |
| Data Analysis | 135 | 152 |
| CSV / Spreadsheet Cleanup | 138 | 142 |
| ETL Scripting | 141 | 139 |
| JSON Extraction | 123 | 143 |
| Bulk Data Labeling | 120 | 133 |
| OCR / Document Parsing | 135 | 139 |
| Table Extraction from PDFs | 135 | 139 |
| Long-Document Summarization | 153 | 143 |
| Short-Form Summarization | 119 | 128 |
| Blog Post Writing | 132 | 130 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →