head-to-head

OpenAI: GPT-6 Luna (batch) vs PrismML: Ternary Bonsai 2 27B

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

OpenAI: GPT-6 Luna (batch) PrismML: Ternary Bonsai 2 27B
Vendoropenaiprism-ml
Quality Score100100
Benchmark Score62.2-
Input Price$0.05/M$0.07/M
Output Price$0.25/M$0.50/M
Context Window1,050,000262,144
Max Output128,00032,768
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index61.5-

Who wins by task?

TaskOpenAI: GPT-6 Luna (batch)PrismML: Ternary Bonsai 2 27B
SQL Generation 141 131
Code Review 143 126
Code Completion 133 129
Code Refactoring 145 127
Bug Fixing 147 130
Unit Test Generation 131 121
Code Documentation 137 126
Regex Writing 126 119
CI/CD Pipelines 127 117
Frontend Component Design 129 122
Data Analysis 133 124
CSV / Spreadsheet Cleanup 136 128
ETL Scripting 136 122
Bulk Data Labeling 129 129
OCR / Document Parsing 134 128
Table Extraction from PDFs 134 128
Long-Document Summarization 147 129
Short-Form Summarization 127 123
Blog Post Writing 129 119

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

Related comparisons

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