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Kimi K1.5 vs o1

Moonshot AI Kimi K1.5 vs OpenAI o1 — side-by-side specs.

Moonshot AI
Kimi K1.5
OpenAI
o1
Overview
CompanyMoonshot AIOpenAI
Release dateJan 20 2025Dec 5 2024
Model type
Open sourceNoNo
Specifications
Parameters
Context window
128k
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapo1 shipped 46 days before Kimi K1.5

Which is better: Kimi K1.5 or o1?

Kimi K1.5 and o1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. o1 shipped 46 days before Kimi K1.5, 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 — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Kimi K1.5 released?
Kimi K1.5 was released by Moonshot AI on Jan 20 2025.
When was o1 released?
o1 was released by OpenAI on Dec 5 2024.

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