head-to-head

Z.ai: GLM Flash Latest vs DeepSeek: DeepSeek V4 Flash Vision Exp (batch)

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

	Z.ai: GLM Flash Latest	DeepSeek: DeepSeek V4 Flash Vision Exp (batch)
Vendor	~z-ai	deepseek
Quality Score	100	100
Benchmark Score	-	80.1
Input Price	$0.07/M	$0.11/M
Output Price	$0.25/M	$0.33/M
Context Window	1,310,720	1,048,576
Max Output	943,718	943,718
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	-	57.8
ai_index_agentic	-	79.4
ai_index_coding	-	100.0

Who wins by task?

Task	Z.ai: GLM Flash Latest	DeepSeek: DeepSeek V4 Flash Vision Exp (batch)
SQL Generation	134	169
Code Review	132	161
Code Completion	131	133
Code Refactoring	136	159
Bug Fixing	136	175
Unit Test Generation	124	151
Code Documentation	131	141
Regex Writing	119	134
CI/CD Pipelines	120	141
Frontend Component Design	122	143
Data Analysis	124	167
CSV / Spreadsheet Cleanup	134	153
ETL Scripting	128	150
JSON Extraction	131	149
Bulk Data Labeling	129	135
OCR / Document Parsing	131	145
Table Extraction from PDFs	131	145
Long-Document Summarization	138	156
Short-Form Summarization	123	131
Blog Post Writing	122	137

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