MODEL LINEAGE
中文
Model index
Moonshot AI·Kimi

Kimi Thinking Preview

A thinking-model preview on the Kimi Open Platform: a distinct API model, not an alias of the K1.5 research model or K2 Thinking.

RetiredReasoningWeights not released
MODEL NUMBER283
First public date
2025-05-06
Organization
Moonshot AI
Family
Kimi
01

Specifications

Only published specifications are shown.

Input modalities
Text
Output modalities
Text
Open weights
No
Status
Retired
Retirement date
2025-11-11
02

Overview

Release dates

— Kimi Thinking Preview entered preview. ↗

03

Architecture & capabilities

04

Release history

Preview

Kimi Thinking Preview entered preview.

View source
Service retired

The Kimi Thinking Preview API was retired.

View source
05

Related models

Select a card to view the related model.

No related models recorded yet

06

Sources

01
Kimi Open Platform changelogMoonshot AI · Checked 2026-09-03
Official · Verified02
Kimi model availability and retirement datesMoonshot AI · Checked 2026-09-03
Official · Verified
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