What is the difference between Kimi K2 0905 and Nova Premier 1.0?

Kimi K2 0905 is developed by Moonshot AI while Nova Premier 1.0 is developed by Amazon. Kimi K2 0905 has a 262K token context window vs Nova Premier 1.0's 1.0M. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, Kimi K2 0905 or Nova Premier 1.0?

It depends on your use case. Kimi K2 0905 and Nova Premier 1.0 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does Kimi K2 0905 cost compared to Nova Premier 1.0?

Kimi K2 0905 costs $0.6/M input tokens and Nova Premier 1.0 costs $2.5/M input tokens. Kimi K2 0905 is $1.90/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 Kimi K2 0905 and Nova Premier 1.0 on Rival?

This page shows a side-by-side comparison of Kimi K2 0905 and Nova Premier 1.0 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 Oct 2025

Kimi K2 0905vsNova Premier 1.0

Kimi K2 0905 is cheaper than Nova Premier 1.0 at $0.6/M vs $2.5/M input tokens.

Kimi K2 0905 and Nova Premier 1.0 compared across 51 shared prompts
Spec	Kimi K2 0905	Nova Premier 1.0
Input price	$0.6/M tokens	$2.5/M tokens
Output price	$2.5/M tokens	$12.5/M tokens
Context window	262K tokens	1.0M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Sep 2025	Oct 2025