head-to-head

Anthropic: Claude Sonnet 5 (batch) vs MoonshotAI: Kimi K2.7 Code (batch)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-08-13.

	Anthropic: Claude Sonnet 5 (batch)	MoonshotAI: Kimi K2.7 Code (batch)
Vendor	anthropic	moonshotai
Quality Score	100	100
Benchmark Score	91.6	73.5
Input Price	$1.00/M	$0.47/M
Output Price	$5.00/M	$2.00/M
Context Window	1,000,000	262,144
Max Output	128,000	-
Tool Calling	✓	✓
Structured Output	✓	✓
Reasoning Mode	✓	✓
Vision	✓	✓
Audio	-	-
Benchmark Scores
ai_index	91.2	71.0
ai_index_agentic	82.0	50.0
ai_index_coding	100.0	100.0

Who wins by task?

Task	Anthropic: Claude Sonnet 5 (batch)	MoonshotAI: Kimi K2.7 Code (batch)
SQL Generation	172	163
Code Review	168	156
Code Completion	120	130
Code Refactoring	165	151
Bug Fixing	182	166
Unit Test Generation	155	147
Code Documentation	143	135
Regex Writing	136	133
CI/CD Pipelines	145	138
Frontend Component Design	147	143
Data Analysis	172	162
CSV / Spreadsheet Cleanup	154	147
ETL Scripting	155	144
JSON Extraction	140	148
Bulk Data Labeling	126	134
OCR / Document Parsing	147	142
Table Extraction from PDFs	147	142
Long-Document Summarization	160	147
Short-Form Summarization	123	130
Blog Post Writing	141	134

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