South Korea519B / 33B active131K contextHybrid reasoning

Explore A.X K1

Use SK Telecom's 519B mixture-of-experts model for Korean reasoning, coding, multilingual work, and controllable think or non-think responses.

Model

skt/A.X-K1

Input

Configure your request

System prompt Optional

Set instructions, language, and response style.

Conversation history Optional

Optional prior messages as a JSON array.

Your message

Parameters

Thinking modeSwitch between deep reasoning and concise, lower-latency responses. Stream response Sample output

Temperature

Top P

Top K

Min P

Maximum output tokens

Prompt and output share the 131K context window.

Presence penalty

Frequency penalty

Repetition penalty

Seed

Stop sequences

Function tools (JSON)

Tool choice