head-to-head

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

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-13.

	Thinking Machines: Inkling (batch)	OpenAI: GPT-5.6 Terra
Vendor	thinkingmachines	openai
Quality Score	100	100
Benchmark Score	70.5	92.7
Input Price	$0.50/M	$1.00/M
Output Price	$2.02/M	$6.00/M
Context Window	524,288	1,050,000
Max Output	-	128,000
Tool Calling	✓	✓
Structured Output	-	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	✓	-
Benchmark Scores
ai_index	69.8	93.3
ai_index_agentic	56.3	82.8
ai_index_coding	85.9	100.0

Who wins by task?

Task	Thinking Machines: Inkling (batch)	OpenAI: GPT-5.6 Terra
SQL Generation	156	173
Code Review	156	169
Code Completion	132	120
Code Refactoring	154	165
Bug Fixing	171	183
Unit Test Generation	140	155
Code Documentation	141	143
Regex Writing	133	136
CI/CD Pipelines	136	146
Frontend Component Design	138	148
Data Analysis	157	173
CSV / Spreadsheet Cleanup	139	154
ETL Scripting	145	155
JSON Extraction	134	140
Bulk Data Labeling	130	125
OCR / Document Parsing	136	147
Table Extraction from PDFs	136	147
Long-Document Summarization	155	161
Short-Form Summarization	130	123
Blog Post Writing	136	141

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