When was Kimi K2 Thinking released?

Kimi K2 Thinking was released by Moonshot AI on Nov 6 2025.

When was GPT-5.2 released?

GPT-5.2 was released by OpenAI on Dec 11 2025.

Which is better at coding, Kimi K2 Thinking or GPT-5.2?

On SWE-Bench Verified (real-world software-engineering tasks), GPT-5.2 leads — Kimi K2 Thinking scores 71.3% and GPT-5.2 scores 80%.

Is Kimi K2 Thinking or GPT-5.2 open source?

Kimi K2 Thinking is an open-source / open-weight model released by Moonshot AI. GPT-5.2 is a proprietary model released by OpenAI.

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Home/Compare/Kimi K2 Thinking vs GPT-5.2

Kimi K2 Thinking vs GPT-5.2

0 vs 2 benchmarks won

	Moonshot AI Kimi K2 Thinking	OpenAI GPT-5.2
Overview
Company	Moonshot AI	OpenAI
Release date	Nov 6 2025	Dec 11 2025
Model type	—	—
Open source	Yes	No
Specifications
Parameters	1T	—
Context window	256k	—
Benchmarks
Science reasoning GPQA Diamond	—	92.4%
Software engineering SWE-Bench Verified	71.3%	80%
Multimodal understanding MMMU	—	—
Timeline
Release gap	Kimi K2 Thinking shipped 35 days before GPT-5.2

Which is better: Kimi K2 Thinking or GPT-5.2?

GPT-5.2 leads Kimi K2 Thinking on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Kimi K2 Thinking shipped 35 days before GPT-5.2, so benchmark comparisons should account for the intervening progress.

Kimi K2 Thinking is an open-source / open-weight model; GPT-5.2 is proprietary.

On SWE-Bench Verified, GPT-5.2 scores 80%, 8.7 points above Kimi K2 Thinking at 71.3%.

Frequently asked questions

When was Kimi K2 Thinking released?: Kimi K2 Thinking was released by Moonshot AI on Nov 6 2025.
When was GPT-5.2 released?: GPT-5.2 was released by OpenAI on Dec 11 2025.
Which is better at coding, Kimi K2 Thinking or GPT-5.2?: On SWE-Bench Verified (real-world software-engineering tasks), GPT-5.2 leads — Kimi K2 Thinking scores 71.3% and GPT-5.2 scores 80%.
Is Kimi K2 Thinking or GPT-5.2 open source?: Kimi K2 Thinking is an open-source / open-weight model released by Moonshot AI. GPT-5.2 is a proprietary model released by OpenAI.