What is the difference between DeepSeek V4 Flash and Muse Spark 1.3?

DeepSeek V4 Flash is developed by DeepSeek while Muse Spark 1.3 is developed by Meta AI. DeepSeek V4 Flash has a 1.0M token context window vs Muse Spark 1.3'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 V4 Flash or Muse Spark 1.3?

It depends on your use case. DeepSeek V4 Flash and Muse Spark 1.3 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 V4 Flash cost compared to Muse Spark 1.3?

DeepSeek V4 Flash costs $0.14/M input tokens and Muse Spark 1.3 costs $1.25/M input tokens. DeepSeek V4 Flash is $1.11/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 V4 Flash and Muse Spark 1.3 on Rival?

This page shows a side-by-side comparison of DeepSeek V4 Flash and Muse Spark 1.3 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 Sep 2026

DeepSeek V4 FlashvsMuse Spark 1.3

DeepSeek V4 Flash is cheaper than Muse Spark 1.3 at $0.14/M vs $1.25/M input tokens.

DeepSeek V4 Flash and Muse Spark 1.3 compared across 54 shared prompts
Spec	DeepSeek V4 Flash	Muse Spark 1.3
Input price	$0.14/M tokens	$1.25/M tokens
Output price	$0.28/M tokens	$4.25/M tokens
Context window	1.0M tokens	1.0M tokens
Weights	Open	Closed
Free API (OpenRouter)	No	No
Released	Apr 2026	Sep 2026