head-to-head

Thinking Machines: Inkling Small vs SpaceXAI: Grok 4.3

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

	Thinking Machines: Inkling Small	SpaceXAI: Grok 4.3
Vendor	thinkingmachines	x-ai
Quality Score	100	100
Benchmark Score	44.5	39.3
Input Price	$0.45/M	$1.25/M
Output Price	$1.20/M	$2.50/M
Context Window	1,048,576	1,000,000
Max Output	262,144	900,000
Tool Calling	✓	✓
Structured Output	-	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	✓	-
Benchmark Scores
ai_index	45.8	41.1

Who wins by task?

Task	Thinking Machines: Inkling Small	SpaceXAI: Grok 4.3
SQL Generation	131	138
Code Review	136	139
Code Completion	132	120
Code Refactoring	139	142
Bug Fixing	144	143
Unit Test Generation	121	128
Code Documentation	135	134
Regex Writing	124	123
CI/CD Pipelines	121	124
Frontend Component Design	123	126
Data Analysis	126	130
CSV / Spreadsheet Cleanup	123	135
ETL Scripting	130	133
JSON Extraction	119	123
Bulk Data Labeling	125	120
OCR / Document Parsing	125	133
Table Extraction from PDFs	125	133
Long-Document Summarization	145	144
Short-Form Summarization	126	117
Blog Post Writing	127	126

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