SpaceXAI: Grok 4.3 vs Qwen: Qwen3.5 397B A17B
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.
| SpaceXAI: Grok 4.3 | Qwen: Qwen3.5 397B A17B | |
|---|---|---|
| Vendor | x-ai | qwen |
| Quality Score | 100 | 100 |
| Benchmark Score | 58.6 | 60.1 |
| Input Price | $1.25/M | $0.50/M |
| Output Price | $2.50/M | $3.60/M |
| Context Window | 1,000,000 | 262,144 |
| Max Output | 900,000 | 235,929 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 62.0 | 55.6 |
| ai_index_agentic | 39.8 | 32.7 |
| ai_index_coding | 69.7 | 79.5 |
| eqbench | - | 58.0 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Qwen3.5 397B A17B costs $1.40 and Grok 4.3 costs $1.88, so Qwen3.5 397B A17B is about 1.3 times cheaper for the same work.
Grok 4.3 reads up to 1,000,000 tokens at once, roughly 1,500 pages of text, against about 393 pages for Qwen3.5 397B A17B.
Only Qwen3.5 397B A17B offers video input.
On our blended benchmark score Qwen3.5 397B A17B leads 60.1 to 58.6.
Across the 20 tasks where they differ, Grok 4.3 scores higher on 8 (Code Refactoring, Bug Fixing, Code Documentation and others), Qwen3.5 397B A17B on 12 (SQL Generation, Code Review, Code Completion and others).
Grok 4.3 was released in April 2026 and Qwen3.5 397B A17B in February 2026.
Pick Grok 4.3 if you need long documents; pick Qwen3.5 397B A17B if you need lower cost, video input or benchmark performance.
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 4.3 | Qwen: Qwen3.5 397B A17B |
|---|---|---|
| SQL Generation | 158 | 159 |
| Code Review | 155 | 156 |
| Code Completion | 120 | 131 |
| Code Refactoring | 155 | 153 |
| Bug Fixing | 164 | 164 |
| Unit Test Generation | 144 | 145 |
| Code Documentation | 139 | 137 |
| Regex Writing | 130 | 132 |
| CI/CD Pipelines | 136 | 137 |
| Frontend Component Design | 138 | 140 |
| Data Analysis | 153 | 156 |
| CSV / Spreadsheet Cleanup | 147 | 146 |
| ETL Scripting | 145 | 145 |
| JSON Extraction | 134 | 144 |
| Bulk Data Labeling | 124 | 133 |
| OCR / Document Parsing | 141 | 141 |
| Table Extraction from PDFs | 141 | 141 |
| Long-Document Summarization | 152 | 150 |
| Short-Form Summarization | 120 | 129 |
| Blog Post Writing | 134 | 134 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →