What is the difference between GPT-5.2 Chat and Kimi K2 0905?

GPT-5.2 Chat is developed by OpenAI while Kimi K2 0905 is developed by Moonshot AI. GPT-5.2 Chat has a 128K token context window vs Kimi K2 0905's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.2 Chat or Kimi K2 0905?

It depends on your use case. GPT-5.2 Chat and Kimi K2 0905 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT-5.2 Chat cost compared to Kimi K2 0905?

GPT-5.2 Chat costs $1.75/M input tokens and Kimi K2 0905 costs $0.6/M input tokens. Kimi K2 0905 is $1.15/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare GPT-5.2 Chat and Kimi K2 0905 on Rival?

This page shows a side-by-side comparison of GPT-5.2 Chat and Kimi K2 0905 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Dec 2025

GPT-5.2 ChatvsKimi K2 0905

Kimi K2 0905 is cheaper than GPT-5.2 Chat at $0.6/M vs $1.75/M input tokens.

GPT-5.2 Chat and Kimi K2 0905 compared across 53 shared prompts
Spec	GPT-5.2 Chat	Kimi K2 0905
Input price	$1.75/M tokens	$0.6/M tokens
Output price	$14/M tokens	$2.5/M tokens
Context window	128K tokens	262K tokens
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	Dec 2025	Sep 2025