What is the difference between GPT-6 Astra Pro and Kimi Linear 48B A3B Instruct?

GPT-6 Astra Pro is developed by OpenAI while Kimi Linear 48B A3B Instruct is developed by Moonshot AI. GPT-6 Astra Pro has a 1.1M token context window vs Kimi Linear 48B A3B Instruct's 1.0M. You can compare their actual outputs across 3 challenges on Rival to see how they differ in practice.

Which is better, GPT-6 Astra Pro or Kimi Linear 48B A3B Instruct?

It depends on your use case. GPT-6 Astra Pro and Kimi Linear 48B A3B Instruct each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 3 challenges so you can judge which fits your needs best.

How much does GPT-6 Astra Pro cost compared to Kimi Linear 48B A3B Instruct?

GPT-6 Astra Pro costs $10/M input tokens and Kimi Linear 48B A3B Instruct costs $0.3/M input tokens. Kimi Linear 48B A3B Instruct is $9.70/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-6 Astra Pro and Kimi Linear 48B A3B Instruct on Rival?

This page shows a side-by-side comparison of GPT-6 Astra Pro and Kimi Linear 48B A3B Instruct 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 Sep 2026

GPT-6 Astra ProvsKimi Linear 48B A3B Instruct

Kimi Linear 48B A3B Instruct is cheaper than GPT-6 Astra Pro at $0.3/M vs $10/M input tokens.

GPT-6 Astra Pro and Kimi Linear 48B A3B Instruct compared across 3 shared prompts
Spec	GPT-6 Astra Pro	Kimi Linear 48B A3B Instruct
Input price	$10/M tokens	$0.3/M tokens
Output price	$50/M tokens	$0.6/M tokens
Context window	1.1M tokens	1.0M tokens
Weights	Closed	Open
Free API (OpenRouter)	No	No
Released	Sep 2026	Nov 2025