What is the difference between DeepSeek R1 0528 and Quasar Alpha?

DeepSeek R1 0528 is developed by DeepSeek while Quasar Alpha is developed by OpenRouter. DeepSeek R1 0528 has a 164K token context window vs Quasar Alpha's 1.0M. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.

Which is better, DeepSeek R1 0528 or Quasar Alpha?

It depends on your use case. DeepSeek R1 0528 and Quasar Alpha each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.

How can I compare DeepSeek R1 0528 and Quasar Alpha on Rival?

This page shows a side-by-side comparison of DeepSeek R1 0528 and Quasar Alpha 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 2025

DeepSeek R1 0528vsQuasar Alpha

Quasar Alpha has a larger context window than DeepSeek R1 0528 (1.0M tokens vs 164K tokens).

DeepSeek R1 0528 and Quasar Alpha compared across 6 shared prompts
Spec	DeepSeek R1 0528	Quasar Alpha
Input price	Free	—
Output price	Free	—
Context window	164K tokens	1.0M tokens
Parameters	671B (37B active)	Not disclosed
Weights	Open	—
Free API (OpenRouter)	No	—
Released	May 2025	Apr 2025