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Thinking Machines: Inkling vs OpenAI: GPT-5.6 Terra

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-19.

Thinking Machines: Inkling OpenAI: GPT-5.6 Terra
Vendorthinkingmachinesopenai
Quality Score100100
Benchmark Score-93.0
Input Price$1.00/M$2.50/M
Output Price$4.05/M$15.00/M
Context Window1,048,5761,050,000
Max Output-128,000
Tool Calling✓✓
Structured Output-✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index-90.7
ai_index_agentic-78.2
ai_index_coding-100.0

Who wins by task?

TaskThinking Machines: InklingOpenAI: GPT-5.6 Terra
SQL Generation 125 171
Code Review 128 168
Code Completion 119 118
Code Refactoring 132 165
Bug Fixing 136 181
Unit Test Generation 116 155
Code Documentation 131 141
Regex Writing 119 134
CI/CD Pipelines 116 145
Frontend Component Design 118 147
Data Analysis 120 171
CSV / Spreadsheet Cleanup 121 153
ETL Scripting 124 155
JSON Extraction 111 137
Bulk Data Labeling 116 122
OCR / Document Parsing 123 147
Table Extraction from PDFs 123 147
Long-Document Summarization 137 159
Short-Form Summarization 115 121
Blog Post Writing 121 139

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

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