Kimi K3
by Moonshotai
Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI. It is suited for complex coding, knowledge work, and long-horizon agentic workflows, and is particularly strong at...
Quick Facts
Provider
Moonshotai
Model ID
moonshotai/kimi-k3
Modality
Text and Image to Text
Tier
Premium
Last Updated
2026-07-22
Released
2026-07-16
Context Length
1049K tokens
Tokenizer
Other
Input Price
$3.00/M
Output Price
$15.00/M
When To Use Kimi K3
Best for
- Coding, debugging, and implementation planning
- Reasoning-heavy questions and step-by-step analysis
- Research, summarization, and document work
- Image understanding, screenshots, and visual questions
- Comparing Moonshotai responses against other leading AI models
Not ideal for
- High-volume casual chats where you want to conserve premium credits
- Native image generation workflows
- Voice, speech, or audio transcription workflows
Input & Output
Accepts
Generates
Pricing
All prices are per 1 million tokens
Input
$3.00/M
Output
$15.00/M
Cache Read
$0.30/M
Capabilities
- Natural language understanding and generation
- Image analysis and understanding
- Advanced reasoning and problem-solving
- Long context window for extended conversations
Example Prompts
Review this TypeScript function for edge cases, bugs, and simpler implementation options.
Turn this product requirement into a small implementation plan with tests.
Solve this problem step by step, then summarize the final answer in one paragraph.
Summarize these notes into key findings, risks, and recommended next steps.
Analyze this screenshot and explain what is happening, including any UI issues.
Supported Parameters
frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsCompare and Use Kimi K3
Related comparisons
Kimi K2 vs Claude
Compare Kimi K2 with Claude for coding and agentic workflows.
Best AI models for coding
Compare coding-focused models for implementation, debugging, and code review.
Best AI models for research
Compare models for analysis, research synthesis, and long-context work.
Best AI models for image generation
Compare visual models for image generation and multimodal workflows.
Compare AI models side by side
Test Kimi K3 against GPT, Claude, Gemini, Grok, and other models.
Frequently Asked Questions
Try Kimi K3 In Related Workflows
Model pages work best when they connect to real tasks. Use these bots and utilities to test Kimi K3 against coding, research, and model-selection workflows.
Use Kimi K3 on RyddleAI
Access Kimi K3 with a RyddleAI subscription.
Compare Kimi K3 With Alternatives
Use these nearby models to test whether Kimi K3 is the right choice for your prompt, budget, and model family preference.
| Alternative | Provider | Tier | Why compare | Page |
|---|---|---|---|---|
| Kimi K2.6 | Moonshotai | Premium | Another Moonshotai model to compare within the same provider family | View model |
| Kimi K2.5 | Moonshotai | Premium | Another Moonshotai model to compare within the same provider family | View model |
| Gemini 3.6 Flash | Premium | Same tier alternative from another provider | View model | |
| Gemini 3.5 Flash Lite | Premium | Same tier alternative from another provider | View model |