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Thinking Machines: Inkling vs OpenAI: GPT-5.6 Sol Pro

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-18.

Thinking Machines: Inkling OpenAI: GPT-5.6 Sol Pro
Vendorthinkingmachinesopenai
Quality Score100100
Benchmark Score70.5-
Input Price$0.95/M$2.50/M
Output Price$4.05/M$15.00/M
Context Window1,048,5761,050,000
Max Output262,144128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index69.8-
ai_index_agentic56.3-
ai_index_coding85.9-

Who wins by task?

TaskThinking Machines: InklingOpenAI: GPT-5.6 Sol Pro
SQL Generation 164 132
Code Review 160 132
Code Completion 132 116
Code Refactoring 158 136
Bug Fixing 171 136
Unit Test Generation 148 124
Code Documentation 140 128
Regex Writing 132 116
CI/CD Pipelines 140 120
Frontend Component Design 142 122
Data Analysis 161 124
CSV / Spreadsheet Cleanup 150 132
ETL Scripting 149 128
JSON Extraction 145 120
Bulk Data Labeling 133 116
OCR / Document Parsing 144 131
Table Extraction from PDFs 144 131
Long-Document Summarization 155 136
Short-Form Summarization 129 112
Blog Post Writing 136 120

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

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