MiniMax: MiniMax M3.1 Flash (free) vs Meta: Muse Spark Open
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-20.
| MiniMax: MiniMax M3.1 Flash (free) | Meta: Muse Spark Open | |
|---|---|---|
| Vendor | minimax | meta |
| Quality Score | 100 | 100 |
| Benchmark Score | - | 63.9 |
| Input Price | Free | $1.25/M |
| Output Price | Free | $4.25/M |
| Context Window | 1,000,000 | 1,048,576 |
| Max Output | 524,288 | 943,718 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | ✓ |
| Benchmark Scores | ||
| ai_index | - | 64.1 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, MiniMax M3.1 Flash (free) costs $0 and Muse Spark Open costs $2.31, so MiniMax M3.1 Flash (free) is free for the same work.
Both take in a similar amount of text: 1,000,000 and 1,048,576 tokens, about 1,500 and 1,573 pages.
Only Muse Spark Open offers audio input.
Across the 20 tasks where they differ, MiniMax M3.1 Flash (free) scores higher on 4 (Code Completion, JSON Extraction, Bulk Data Labeling and others), Muse Spark Open on 16 (SQL Generation, Code Review, Code Refactoring and others).
Pick MiniMax M3.1 Flash (free) if you need lower cost; pick Muse Spark Open if you need audio 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 | MiniMax: MiniMax M3.1 Flash (free) | Meta: Muse Spark Open |
|---|---|---|
| SQL Generation | 134 | 141 |
| Code Review | 132 | 144 |
| Code Completion | 132 | 120 |
| Code Refactoring | 136 | 146 |
| Bug Fixing | 136 | 148 |
| Unit Test Generation | 124 | 131 |
| Code Documentation | 132 | 136 |
| Regex Writing | 120 | 125 |
| CI/CD Pipelines | 120 | 127 |
| Frontend Component Design | 122 | 129 |
| Data Analysis | 124 | 133 |
| CSV / Spreadsheet Cleanup | 134 | 136 |
| ETL Scripting | 128 | 137 |
| JSON Extraction | 132 | 122 |
| Bulk Data Labeling | 130 | 120 |
| OCR / Document Parsing | 131 | 134 |
| Table Extraction from PDFs | 131 | 134 |
| Long-Document Summarization | 138 | 147 |
| Short-Form Summarization | 124 | 118 |
| Blog Post Writing | 122 | 129 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →