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Meta: Muse Spark 1.1 vs OpenAI: GPT-5.6 Terra

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-04.

Meta: Muse Spark 1.1 OpenAI: GPT-5.6 Terra
Vendormetaopenai
Quality Score100100
Benchmark Score84.792.1
Input Price$1.25/M$2.00/M
Output Price$4.25/M$12.00/M
Context Window1,048,5761,050,000
Max Output943,718128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index87.893.3
ai_index_agentic65.682.8
ai_index_coding100.0100.0

Who wins by task?

TaskMeta: Muse Spark 1.1OpenAI: GPT-5.6 Terra
SQL Generation 170 172
Code Review 166 169
Code Completion 120 119
Code Refactoring 163 165
Bug Fixing 178 183
Unit Test Generation 153 155
Code Documentation 142 142
Regex Writing 135 135
CI/CD Pipelines 144 146
Frontend Component Design 146 148
Data Analysis 168 173
CSV / Spreadsheet Cleanup 153 153
ETL Scripting 153 155
JSON Extraction 139 138
Bulk Data Labeling 126 123
OCR / Document Parsing 146 147
Table Extraction from PDFs 146 147
Long-Document Summarization 159 160
Short-Form Summarization 123 122
Blog Post Writing 139 140

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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