Meta: Muse Spark 1.1 vs OpenAI: GPT-5.6 Terra
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-19.
| Meta: Muse Spark 1.1 | OpenAI: GPT-5.6 Terra | |
|---|---|---|
| Vendor | meta | openai |
| Quality Score | 100 | 100 |
| Benchmark Score | - | 70.0 |
| Input Price | $1.25/M | $2.00/M |
| Output Price | $4.25/M | $12.00/M |
| Context Window | 1,048,576 | 1,050,000 |
| Max Output | 943,718 | 128,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | - | 69.4 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Muse Spark 1.1 costs $2.31 and GPT-5.6 Terra costs $5.00, so Muse Spark 1.1 is about 2.2 times cheaper for the same work.
Both take in a similar amount of text: 1,048,576 and 1,050,000 tokens, about 1,573 and 1,575 pages.
Only Muse Spark 1.1 offers video input.
Across the 20 tasks where they differ, Muse Spark 1.1 scores higher on 3 (Code Completion, JSON Extraction, Bulk Data Labeling), GPT-5.6 Terra on 17 (SQL Generation, Code Review, Code Refactoring and others).
Pick Muse Spark 1.1 if you need lower cost or video input; pick GPT-5.6 Terra if you need 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 | Meta: Muse Spark 1.1 | OpenAI: GPT-5.6 Terra |
|---|---|---|
| SQL Generation | 133 | 140 |
| Code Review | 132 | 145 |
| Code Completion | 118 | 118 |
| Code Refactoring | 136 | 147 |
| Bug Fixing | 136 | 149 |
| Unit Test Generation | 124 | 132 |
| Code Documentation | 130 | 135 |
| Regex Writing | 118 | 124 |
| CI/CD Pipelines | 120 | 128 |
| Frontend Component Design | 122 | 130 |
| Data Analysis | 124 | 134 |
| CSV / Spreadsheet Cleanup | 133 | 135 |
| ETL Scripting | 128 | 137 |
| JSON Extraction | 122 | 121 |
| Bulk Data Labeling | 120 | 117 |
| OCR / Document Parsing | 131 | 134 |
| Table Extraction from PDFs | 131 | 134 |
| Long-Document Summarization | 137 | 147 |
| Short-Form Summarization | 114 | 116 |
| Blog Post Writing | 121 | 128 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →