moonshotai/kimi-k3

Kimi K3

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...

7/16/2026

1,048,576 tokens

#1 Code (Overall)

Input: ¥536.1447/M

Output: ¥2,680.7235/M

Try in Chat Get API Key

Specifications

Modalities

Input

text

image

Output

text

Supported Parameters

frequency_penalty

include_reasoning

max_tokens

presence_penalty

reasoning

reasoning_effort

response_format

stop

structured_outputs

tool_choice

tools

Code Examples

curl https://api.fastmetal.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "kimi-k3",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Leaderboard

Text

🏆OverallELO: 1,486

#10

🇨🇳ChineseELO: 1,527

#14

🇬🇧EnglishELO: 1,491

russianELO: 1,489

#15

💻CodingELO: 1,531

✍️Creative WritingELO: 1,470

#10

📝Instruction FollowingELO: 1,479

#12

🌶️Hard PromptsELO: 1,505

#10

💬Multi-TurnELO: 1,499

Code

🏆OverallELO: 1,678