What is the difference between Andromeda Alpha and Muse Spark 1.3 Contributor?

Andromeda Alpha is developed by OpenRouter while Muse Spark 1.3 Contributor is developed by Meta AI. Andromeda Alpha has a 128K token context window vs Muse Spark 1.3 Contributor's 1.0M. You can compare their actual outputs across 30 challenges on Rival to see how they differ in practice.

Which is better, Andromeda Alpha or Muse Spark 1.3 Contributor?

It depends on your use case. Andromeda Alpha and Muse Spark 1.3 Contributor each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 30 challenges so you can judge which fits your needs best.

How much does Andromeda Alpha cost compared to Muse Spark 1.3 Contributor?

Andromeda Alpha costs $0/M input tokens and Muse Spark 1.3 Contributor costs $0.1/M input tokens. Andromeda Alpha is $0.10/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 Andromeda Alpha and Muse Spark 1.3 Contributor on Rival?

This page shows a side-by-side comparison of Andromeda Alpha and Muse Spark 1.3 Contributor 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

Andromeda AlphavsMuse Spark 1.3 Contributor

Andromeda Alpha is cheaper than Muse Spark 1.3 Contributor at $0/M vs $0.1/M input tokens.

Andromeda Alpha and Muse Spark 1.3 Contributor compared across 30 shared prompts
Spec	Andromeda Alpha	Muse Spark 1.3 Contributor
Input price	Free	$0.1/M tokens
Output price	Free	$0.2/M tokens
Context window	128K tokens	1.0M tokens
Weights	—	Closed
Free API (OpenRouter)	No	No
Released	Oct 2025	Sep 2026

Our Verdict

Muse Spark 1.3 Contributor

Andromeda AlphaRunner-up

Not enough votes to call it. On the specs, Muse Spark 1.3 Contributor has the edge: bigger model tier, newer, bigger context window, major provider backing.

Slight edge

API pricing