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Meta: Muse Spark 1.2 Contributor vs OpenAI: GPT-5.6 Terra

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-22.

Meta: Muse Spark 1.2 Contributor OpenAI: GPT-5.6 Terra
Vendormetaopenai
Quality Score100100
Benchmark Score-92.7
Input Price$0.10/M$2.00/M
Output Price$0.20/M$12.00/M
Context Window1,048,5761,050,000
Max Output-128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index-93.3
ai_index_agentic-82.8
ai_index_coding-100.0

Who wins by task?

TaskMeta: Muse Spark 1.2 ContributorOpenAI: GPT-5.6 Terra
SQL Generation 134 172
Code Review 132 169
Code Completion 131 119
Code Refactoring 136 165
Bug Fixing 136 183
Unit Test Generation 124 155
Code Documentation 131 142
Regex Writing 119 135
CI/CD Pipelines 120 146
Frontend Component Design 122 148
Data Analysis 124 173
CSV / Spreadsheet Cleanup 134 153
ETL Scripting 128 155
JSON Extraction 131 138
Bulk Data Labeling 129 123
OCR / Document Parsing 131 147
Table Extraction from PDFs 131 147
Long-Document Summarization 138 160
Short-Form Summarization 123 122
Blog Post Writing 122 140

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

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