What is the difference between GPT-4o (Omni) and Kimi K2.7 Code?

GPT-4o (Omni) is developed by OpenAI while Kimi K2.7 Code is developed by Moonshot AI. GPT-4o (Omni) has a 128K token context window vs Kimi K2.7 Code's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-4o (Omni) or Kimi K2.7 Code?

It depends on your use case. GPT-4o (Omni) and Kimi K2.7 Code 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-4o (Omni) cost compared to Kimi K2.7 Code?

GPT-4o (Omni) costs $2.5/M input tokens and Kimi K2.7 Code costs $0.95/M input tokens. Kimi K2.7 Code is $1.55/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-4o (Omni) and Kimi K2.7 Code on Rival?

This page shows a side-by-side comparison of GPT-4o (Omni) and Kimi K2.7 Code 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 Jun 2026

GPT-4o (Omni)vsKimi K2.7 Code

Kimi K2.7 Code is cheaper than GPT-4o (Omni) at $0.95/M vs $2.5/M input tokens.

GPT-4o (Omni) and Kimi K2.7 Code compared across 53 shared prompts
Spec	GPT-4o (Omni)	Kimi K2.7 Code
Input price	$2.5/M tokens	$0.95/M tokens
Output price	$10/M tokens	$4/M tokens
Context window	128K tokens	262K tokens
Parameters	Not disclosed	1T (32B active)
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	May 2024	Jun 2026