Meta: Muse Wonder vs StepFun: Step 5 Preview
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-13.
| Meta: Muse Wonder | StepFun: Step 5 Preview | |
|---|---|---|
| Vendor | meta | stepfun |
| Quality Score | 100 | 100 |
| Benchmark Score | 90.2 | 74.2 |
| Input Price | $4.00/M | $1.00/M |
| Output Price | $20.00/M | $2.70/M |
| Context Window | 1,048,576 | 1,000,000 |
| Max Output | 943,718 | 64,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | ✓ | - |
| Benchmark Scores | ||
| ai_index | 86.4 | 72.2 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Step 5 Preview costs $1.68 and Muse Wonder costs $9.00, so Step 5 Preview is about 5.4 times cheaper for the same work.
Both take in a similar amount of text: 1,048,576 and 1,000,000 tokens, about 1,573 and 1,500 pages.
Only Muse Wonder offers audio input.
On our blended benchmark score Muse Wonder leads 90.2 to 74.2.
Across the 20 tasks where they differ, Muse Wonder scores higher on 11 (Code Review, Code Refactoring, Bug Fixing and others), Step 5 Preview on 9 (SQL Generation, Code Completion, Code Documentation and others).
Pick Muse Wonder if you need audio input or benchmark performance; pick Step 5 Preview if you need lower cost.
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 | Meta: Muse Wonder | StepFun: Step 5 Preview |
|---|---|---|
| SQL Generation | 142 | 142 |
| Code Review | 148 | 145 |
| Code Completion | 116 | 120 |
| Code Refactoring | 149 | 147 |
| Bug Fixing | 152 | 149 |
| Unit Test Generation | 134 | 132 |
| Code Documentation | 135 | 137 |
| Regex Writing | 123 | 126 |
| CI/CD Pipelines | 130 | 128 |
| Frontend Component Design | 132 | 130 |
| Data Analysis | 137 | 134 |
| CSV / Spreadsheet Cleanup | 135 | 136 |
| ETL Scripting | 140 | 138 |
| JSON Extraction | 119 | 123 |
| Bulk Data Labeling | 114 | 120 |
| OCR / Document Parsing | 135 | 134 |
| Table Extraction from PDFs | 135 | 134 |
| Long-Document Summarization | 149 | 149 |
| Short-Form Summarization | 115 | 118 |
| Blog Post Writing | 130 | 130 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →