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K2Think

K2 Think is an open reasoning model from MBZUAI’s Institute of Foundation Models. It is unrelated to Moonshot’s Kimi models. The original project URL now redirects to a K2 Horizon-branded chat interface.

Website

model · Limited available evidence · Checked 2026-10-04

Overview

K2 Think is an open reasoning model from MBZUAI’s Institute of Foundation Models. It is unrelated to Moonshot’s Kimi models. The original project URL now redirects to a K2 Horizon-branded chat interface.[1][3]

Use cases

  • Research mathematical reasoning and deploy the released model using Transformers or model-serving frameworks.[1]

Limitations

  • The original model card notes that outputs can be inaccurate, biased or undesirable.[1]

Access and availability

  • The publisher separately offers a Build with K2 Think V2 program. In September 2026 it released the newer K2 Horizon family. Those releases do not automatically change this catalog entry’s identity.[2][3]

Specifications

Verified 2026-10-04. Versions and access terms can change.

Original K2 Think model32B reasoning model based on Qwen2.5-32B; this is not a specification for the separate V2 or Horizon releases[1]
Original model licenseApache 2.0[1]

Public user feedback

Attributed external experiences. These are separate from verified specifications and vendor claims.

No attributable user reviews have been verified for this entry yet.

Links

Website

Sources and evidence gaps

  1. IFM original K2 Think model cardrepository · checked 2026-10-04
  2. Build with K2 Think V2official · checked 2026-10-04
  3. MBZUAI K2 Horizon releaseofficial · checked 2026-10-04 · published 2026-09-03
  • The redirected chat’s current models, quota and pricing have not been established.
  • Attributed current feedback and dedicated K2 Think artwork were not verified.