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Kimi K1.5 vs o3-mini-high

Moonshot AI Kimi K1.5 vs OpenAI o3-mini-high — side-by-side specs.

Moonshot AI
Kimi K1.5
OpenAI
o3-mini-high
Overview
CompanyMoonshot AIOpenAI
Release dateJan 20 2025Jan 31 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
128k
Benchmarks
Timeline
Release gapKimi K1.5 shipped 11 days before o3-mini-high

Which is better: Kimi K1.5 or o3-mini-high?

Kimi K1.5 and o3-mini-high don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi K1.5 shipped 11 days before o3-mini-high, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — Kimi K1.5 and o3-mini-high don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Kimi K1.5 released?
Kimi K1.5 was released by Moonshot AI on Jan 20 2025.
When was o3-mini-high released?
o3-mini-high was released by OpenAI on Jan 31 2025.

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