head-to-head

Thinking Machines: Inkling Small vs OpenAI: GPT-5.6 Luna (batch)

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

	Thinking Machines: Inkling Small	OpenAI: GPT-5.6 Luna (batch)
Vendor	thinkingmachines	openai
Quality Score	100	100
Benchmark Score	44.5	62.3
Input Price	$0.45/M	$0.10/M
Output Price	$1.20/M	$0.60/M
Context Window	1,048,576	1,050,000
Max Output	262,144	128,000
Tool Calling	✓	✓
Structured Output	-	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	✓	-
Benchmark Scores
ai_index	45.8	61.6

Who wins by task?

Task	Thinking Machines: Inkling Small	OpenAI: GPT-5.6 Luna (batch)
SQL Generation	131	141
Code Review	136	143
Code Completion	132	133
Code Refactoring	139	145
Bug Fixing	144	147
Unit Test Generation	121	131
Code Documentation	135	137
Regex Writing	124	126
CI/CD Pipelines	121	127
Frontend Component Design	123	129
Data Analysis	126	133
CSV / Spreadsheet Cleanup	123	136
ETL Scripting	130	136
JSON Extraction	119	131
Bulk Data Labeling	125	129
OCR / Document Parsing	125	134
Table Extraction from PDFs	125	134
Long-Document Summarization	145	147
Short-Form Summarization	126	126
Blog Post Writing	127	129

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