head-to-head
MoonshotAI: Kimi K2.5 vs ByteDance Seed: Seed 1.6
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.
| MoonshotAI: Kimi K2.5 | ByteDance Seed: Seed 1.6 | |
|---|---|---|
| Vendor | moonshotai | bytedance-seed |
| Quality Score | 100 | 100 |
| Benchmark Score | 59.2 | - |
| Input Price | $0.45/M | $0.25/M |
| Output Price | $2.25/M | $2.00/M |
| Context Window | 262,144 | 262,144 |
| Max Output | 235,929 | 32,768 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 38.7 | - |
| eqbench | 72.5 | - |
Who wins by task?
| Task | MoonshotAI: Kimi K2.5 | ByteDance Seed: Seed 1.6 |
|---|---|---|
| SQL Generation | 140 | 131 |
| Code Review | 142 | 126 |
| Code Completion | 131 | 128 |
| Code Refactoring | 143 | 127 |
| Bug Fixing | 146 | 130 |
| Unit Test Generation | 131 | 121 |
| Code Documentation | 135 | 126 |
| Regex Writing | 126 | 119 |
| CI/CD Pipelines | 127 | 117 |
| Frontend Component Design | 129 | 122 |
| Data Analysis | 134 | 124 |
| CSV / Spreadsheet Cleanup | 134 | 128 |
| ETL Scripting | 135 | 122 |
| JSON Extraction | 131 | 131 |
| Bulk Data Labeling | 129 | 129 |
| OCR / Document Parsing | 132 | 128 |
| Table Extraction from PDFs | 132 | 128 |
| Long-Document Summarization | 145 | 129 |
| Short-Form Summarization | 126 | 123 |
| Blog Post Writing | 128 | 119 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →
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