MODELS / MOONSHOT

Kimi K2 Thinking

Kimi K2 Thinking is an advanced open-source thinking model by Moonshot AI. It can execute up to 200 – 300 sequential tool calls without human interference, reasoning coherently across hundreds of steps to solve complex problems. Built as a thinking agent, it reasons step by…

TEXTREASONINGREASONINGTOOL-USEIMPLICIT-CACHING
216.1K
CONTEXT WINDOW
-
MAX OUTPUT TOKENS
$0.47
INPUT PRICE / 1M TOKENS
$2
OUTPUT PRICE / 1M TOKENS
QUICKSTART

Call it in one request.

OpenAI-compatible: change the base URL, and the setup is complete.

curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/moonshotai/kimi-k2-thinking",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything Kimi K2 Thinking supports, in one table.

MODEL ID
blackboxai/moonshotai/kimi-k2-thinking
DEVELOPED BY
Moonshot
MODEL TYPE
Text
RELEASED
Nov 6, 2025
CONTEXT WINDOW
216.1K
MAX OUTPUT TOKENS
-
INPUT MODALITIES
text
OUTPUT MODALITIES
text
INPUT PRICE
$0.47 / 1M tokens
OUTPUT PRICE
$2 / 1M tokens
CACHE READ
$0.141 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Enterprise · single-tenant
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoning