head-to-head

OpenAI: GPT Luna Latest vs Thinking Machines: Inkling

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

OpenAI: GPT Luna Latest Thinking Machines: Inkling
Vendor~openaithinkingmachines
Quality Score100100
Benchmark Score-39.4
Input Price$0.10/M$1.00/M
Output Price$0.50/M$4.05/M
Context Window1,050,0001,048,576
Max Output128,000471,859
Tool Calling
Structured Output-
Reasoning Mode
Vision
Audio-
Benchmark Scores
ai_index-41.2

Who wins by task?

TaskOpenAI: GPT Luna LatestThinking Machines: Inkling
SQL Generation 133 130
Code Review 132 135
Code Completion 131 119
Code Refactoring 136 138
Bug Fixing 136 143
Unit Test Generation 124 120
Code Documentation 131 134
Regex Writing 119 123
CI/CD Pipelines 120 120
Frontend Component Design 122 122
Data Analysis 124 126
CSV / Spreadsheet Cleanup 133 123
ETL Scripting 128 129
JSON Extraction 131 111
Bulk Data Labeling 129 116
OCR / Document Parsing 131 125
Table Extraction from PDFs 131 125
Long-Document Summarization 137 144
Short-Form Summarization 123 117
Blog Post Writing 121 126

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

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