KT's in-house model comes to OpenRouter

"Mi:dm K 3.0 Pro," a reasoning model from South Korean telecom giant KT, was listed on U.S.-based AI model routing service OpenRouter on Nov. 5 (Nov. 6 Japan time). The listing follows its release on "KT Token Factory," an AI model platform for businesses that KT launched on Oct. 29, and OpenRouter users can call it with the same API and key as other models. Pricing is $0.20 for input and $0.80 for output per 1 million tokens (units of text). Its context window is 261,795 tokens. No official announcement by KT could be found on KT's website, Token Factory or OpenRouter's official pages.

@gptbotio, an X account that automatically reports new models on OpenRouter, reported the listing on Nov. 11.

@gptbotio · November 11, 2026

A reasoning model with 120 billion total parameters

According to Token Factory's model page, Mi:dm K 3.0 Pro is a "MoE (mixture of experts)" reasoning model with 120 billion total parameters, of which 12 billion are used per pass. The page notes that these figures are based on KT's announcement. Its architecture combines Mamba (state space model), MoE and Attention layers, and it runs on weights made lighter by reducing computational precision (quantized).

Both input and output are text only. On OpenRouter, the maximum per response is 235,615 tokens, and it supports reasoning settings and output in a fixed format. The previous generation, "Mi:dm K 2.5 Pro," had 32 billion parameters, and KT's technology unit published a technical report on it in March.

Priced below two South Korean models

The list price on Token Factory is 271 won ($0.2) for input and 1,085 won ($0.8) for output, the same as OpenRouter in dollar terms. KT is offering 30% off usage fees through Nov. 30 for seven models it runs on its own facilities, bringing Mi:dm K 3.0 Pro to 190 won ($0.14) for input and 759 won ($0.56) for output. The discount is available to customers who have completed corporate verification and a product contract.

Among South Korean models KT runs on the same platform, South Korea's Upstage "Solar-Pro-4" and South Korea's Motif Technologies "Motif-3" both list at $0.3 for input and $1.2 for output, and Mi:dm K 3.0 Pro is cheaper. On the other hand, Google's "Gemma 4 31B" ($0.1 input, $0.34 output) and China's Zhipu "GLM 5.3 Flash" ($0.15 input, $0.5 output) are even cheaper.

List prices of three South Korean models KT runs (per 1 million tokens, $). From KT Token Factory's model list
  • Mi:dm K 3.0 Pro
  • Solar-Pro-4
  • Motif-3
0.20.30.3
Input
0.81.21.2
Output

No official performance evaluation or weights found

Token Factory's model page lists response speed measurements but no benchmark results measuring performance. No third-party evaluations, such as from Artificial Analysis, could be found as of Nov. 11.

No release of weights (the data that makes up the model) could be confirmed either. The Mi:dm models KT has published on Hugging Face are two models of the previous generation, "Mi:dm 2.0." On OpenRouter, too, KT is the only provider.

Using Token Factory requires corporate verification and a product contract after registering as a member. KT says it offers the models it runs itself on its own facilities in South Korea.