head-to-head

OpenAI: GPT-6 Sol (batch) vs DeepSeek: DeepSeek V4.1 Flash (batch)

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

	OpenAI: GPT-6 Sol (batch)	DeepSeek: DeepSeek V4.1 Flash (batch)
Vendor	openai	deepseek
Quality Score	100	100
Benchmark Score	81.2	66.3
Input Price	$1.00/M	$0.11/M
Output Price	$5.00/M	$0.34/M
Context Window	1,050,000	1,048,576
Max Output	128,000	131,072
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	78.4	65.1

Who wins by task?

Task	OpenAI: GPT-6 Sol (batch)	DeepSeek: DeepSeek V4.1 Flash (batch)
SQL Generation	142	141
Code Review	146	144
Code Completion	120	133
Code Refactoring	148	146
Bug Fixing	150	148
Unit Test Generation	133	131
Code Documentation	137	137
Regex Writing	126	126
CI/CD Pipelines	129	127
Frontend Component Design	131	129
Data Analysis	135	133
CSV / Spreadsheet Cleanup	136	136
ETL Scripting	139	137
JSON Extraction	122	131
Bulk Data Labeling	120	129
OCR / Document Parsing	134	134
Table Extraction from PDFs	134	134
Long-Document Summarization	149	148
Short-Form Summarization	118	127
Blog Post Writing	130	129

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