What is the difference between DeepSeek R1 0528 and Grok 4.3?

DeepSeek R1 0528 is developed by DeepSeek while Grok 4.3 is developed by xAI. DeepSeek R1 0528 has a 164K token context window vs Grok 4.3's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek R1 0528 or Grok 4.3?

It depends on your use case. DeepSeek R1 0528 and Grok 4.3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does DeepSeek R1 0528 cost compared to Grok 4.3?

DeepSeek R1 0528 costs $0/M input tokens and Grok 4.3 costs $1.25/M input tokens. DeepSeek R1 0528 is $1.25/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 DeepSeek R1 0528 and Grok 4.3 on Rival?

This page shows a side-by-side comparison of DeepSeek R1 0528 and Grok 4.3 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 May 2026

DeepSeek R1 0528vsGrok 4.3

DeepSeek R1 0528 is cheaper than Grok 4.3 at $0/M vs $1.25/M input tokens.

DeepSeek R1 0528 and Grok 4.3 compared across 54 shared prompts
Spec	DeepSeek R1 0528	Grok 4.3
Input price	Free	$1.25/M tokens
Output price	Free	$2.5/M tokens
Context window	164K tokens	1.0M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	May 2025	May 2026