head-to-head

Thinking Machines: Inkling Small vs xAI: Grok 4.5

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-01.

	Thinking Machines: Inkling Small	xAI: Grok 4.5
Vendor	thinkingmachines	x-ai
Quality Score	100	100
Benchmark Score	69.0	90.2
Input Price	$0.50/M	$2.00/M
Output Price	$1.20/M	$6.00/M
Context Window	524,288	500,000
Max Output	-	-
Tool Calling	✓	✓
Structured Output	-	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	✓	-
Benchmark Scores
ai_index	66.3	88.8
ai_index_agentic	50.8	75.4
ai_index_coding	87.4	100.0

Who wins by task?

Task	Thinking Machines: Inkling Small	xAI: Grok 4.5
SQL Generation	155	171
Code Review	155	167
Code Completion	133	120
Code Refactoring	154	164
Bug Fixing	169	180
Unit Test Generation	140	154
Code Documentation	140	142
Regex Writing	132	135
CI/CD Pipelines	135	144
Frontend Component Design	137	146
Data Analysis	156	170
CSV / Spreadsheet Cleanup	139	154
ETL Scripting	144	154
JSON Extraction	134	139
Bulk Data Labeling	130	125
OCR / Document Parsing	136	146
Table Extraction from PDFs	136	146
Long-Document Summarization	155	159
Short-Form Summarization	130	123
Blog Post Writing	136	140

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