MoonshotAI: Kimi K3 vs Meta: Muse Spark 1.1
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-27.
| MoonshotAI: Kimi K3 | Meta: Muse Spark 1.1 | |
|---|---|---|
| Vendor | moonshotai | meta |
| Quality Score | 100 | 100 |
| Benchmark Score | 73.9 | 55.7 |
| Input Price | $3.00/M | $1.25/M |
| Output Price | $15.00/M | $4.25/M |
| Context Window | 1,048,576 | 1,048,576 |
| Max Output | 943,718 | 943,718 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | ✓ |
| Benchmark Scores | ||
| ai_index | 71.9 | 55.7 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Muse Spark 1.1 costs $2.31 and Kimi K3 costs $6.75, so Muse Spark 1.1 is about 2.9 times cheaper for the same work.
Both read up to 1,048,576 tokens at once, roughly 1,573 pages of text.
Only Muse Spark 1.1 offers audio input.
On our blended benchmark score Kimi K3 leads 73.9 to 55.7.
Across the 20 tasks where they differ, Kimi K3 scores higher on 13 (SQL Generation, Code Review, Code Refactoring and others), Muse Spark 1.1 on 7 (Code Completion, Code Documentation, Regex Writing and others).
Pick Kimi K3 if you need benchmark performance; pick Muse Spark 1.1 if you need lower cost or audio input.
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 | MoonshotAI: Kimi K3 | Meta: Muse Spark 1.1 |
|---|---|---|
| SQL Generation | 140 | 140 |
| Code Review | 145 | 142 |
| Code Completion | 117 | 120 |
| Code Refactoring | 147 | 144 |
| Bug Fixing | 149 | 146 |
| Unit Test Generation | 132 | 130 |
| Code Documentation | 134 | 135 |
| Regex Writing | 123 | 124 |
| CI/CD Pipelines | 128 | 126 |
| Frontend Component Design | 130 | 128 |
| Data Analysis | 134 | 132 |
| CSV / Spreadsheet Cleanup | 135 | 135 |
| ETL Scripting | 138 | 135 |
| JSON Extraction | 120 | 122 |
| Bulk Data Labeling | 116 | 120 |
| OCR / Document Parsing | 134 | 133 |
| Table Extraction from PDFs | 134 | 133 |
| Long-Document Summarization | 147 | 146 |
| Short-Form Summarization | 116 | 117 |
| Blog Post Writing | 128 | 128 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →