moonshotai

MoonshotAI: Kimi K3

MoonshotAI's Kimi K3 is a versatile AI model capable of processing text, images, and videos within an extensive context length of 1048576 tokens. It supports both reasoning and the use of tools, making it suitable for complex tasks that require integration with external data or actions. Given its benchmark blended score of 96.9 across three independent evaluations, Kimi K3 is a strong contender for projects demanding high performance in multiple domains. However, at a price point of $3.0 per million input tokens and $15.0 per million output tokens, it may be cost-prohibitive for smaller-scale applications or those with limited budgets. Organizations requiring robust AI capabilities across various modalities should consider whether the investment aligns with their needs.

Quality Score
100/100
price + capability + benchmarks
Input Price
$3.00
per 1M tokens
Output Price
$15.00
per 1M tokens
Context Window
1,048,576
tokens

Benchmark results

Independent, published benchmarks. Blended score 96.9 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 98.5
AI Index Coding software engineering tasks 100.0
AI Index Agentic multi-step tool-using tasks 89.5
Model ID
moonshotai/kimi-k3
Vendor
moonshotai
Released
July 2026
Tokenizer
Other
Input Modalities
text, image, video
Output Modalities
text
Max Output
default
Tool Calling
✓ supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
no
Moderated
no

What it costs in practice

Computed from the current $3.00/M input and $15.00/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.11
Classify 1,000 customer emails 500k in / 50k out $2.25
A month of a busy support chatbot 5M in / 2M out $45.00

Strong choice for

Category rankings

Where MoonshotAI: Kimi K3 places across the 49 categories it ranks in. How we rank →

#CategoryScore
#4 Video SummarizationVideo · of 25 ranked 162
#9 Function / Tool CallingAgents · of 25 ranked 156
#10 Browser AutomationAgents · of 25 ranked 176
#11 Diagram ExtractionVision · of 25 ranked 151
#12 Data AnalysisData · of 25 ranked 175
#13 Frontend Component DesignCode · of 25 ranked 149
#13 Screenshot DebuggingVision · of 25 ranked 145
#13 Chart & Graph ReadingVision · of 25 ranked 155
#13 Fitness CoachingPersonal · of 25 ranked 137
#14 Financial AnalysisProfessional · of 25 ranked 163
#15 OCR / Document ParsingData · of 25 ranked 147
#15 Table Extraction from PDFsData · of 25 ranked 147
#15 Experiment DesignResearch · of 25 ranked 160
#16 Math TutoringEducation · of 25 ranked 150
#17 SQL GenerationCode · of 25 ranked 173
#17 Unit Test GenerationCode · of 25 ranked 157
#17 CI/CD PipelinesCode · of 25 ranked 147
#18 Bug FixingCode · of 25 ranked 185
#18 Physics TutoringEducation · of 25 ranked 150
#18 Agent WorkflowsAgents · of 25 ranked 197
#18 Coding AgentsAgents · of 25 ranked 197
#18 Scientific CodingResearch · of 25 ranked 185
#19 Code ReviewCode · of 25 ranked 170
#19 Marketing CopyWriting · of 25 ranked 131
#19 Essay GradingEducation · of 25 ranked 170
#19 Standardized Test PrepEducation · of 25 ranked 131
#20 ETL ScriptingData · of 25 ranked 157
#20 Medical Note SummarizationProfessional · of 25 ranked 157
#20 History TutoringEducation · of 25 ranked 147
#21 Code RefactoringCode · of 25 ranked 167
#21 Creative WritingWriting · of 25 ranked 160
#21 Screenwriting & DialogWriting · of 25 ranked 160
#21 Academic WritingWriting · of 25 ranked 160
#21 Legal DraftingProfessional · of 25 ranked 160
#21 Legal ResearchProfessional · of 25 ranked 170
#21 Contract ReviewProfessional · of 25 ranked 180
#21 Scientific ResearchProfessional · of 25 ranked 170
#21 RFP ResponseBusiness · of 25 ranked 176
#21 OKRs & Strategic PlanningBusiness · of 25 ranked 160
#21 RAG PipelinesAgents · of 25 ranked 167
#21 Long-Context Q&AAgents · of 25 ranked 157
#21 Fiction CollaboratorPersonal · of 25 ranked 170
#21 Math ProofsResearch · of 25 ranked 160
#21 Literature ReviewResearch · of 25 ranked 170
#22 Long-Document SummarizationWriting · of 25 ranked 161
#22 Blog Post WritingWriting · of 25 ranked 141
#22 Character RoleplayPersonal · of 25 ranked 151
#22 Trip PlanningPersonal · of 25 ranked 141
#24 SOP / Process DocsBusiness · of 25 ranked 137

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Quick answers

How much does MoonshotAI: Kimi K3 cost?
$3.00 per million input tokens and $15.00 per million output tokens.
What is MoonshotAI: Kimi K3's context window?
1,048,576 tokens, roughly 1,572 pages of text in a single request.
Does MoonshotAI: Kimi K3 support tool calling?
It supports tool calling, structured output, a reasoning mode.
Can MoonshotAI: Kimi K3 process images?
Yes, it accepts image input.