What is the difference between GPT-5.4 Nano and Muse Spark 1.1?

GPT-5.4 Nano is developed by OpenAI while Muse Spark 1.1 is developed by Meta AI. GPT-5.4 Nano has a 400K token context window vs Muse Spark 1.1's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 Nano or Muse Spark 1.1?

It depends on your use case. GPT-5.4 Nano and Muse Spark 1.1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT-5.4 Nano cost compared to Muse Spark 1.1?

GPT-5.4 Nano costs $0.2/M input tokens and Muse Spark 1.1 costs $1.25/M input tokens. GPT-5.4 Nano is $1.05/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-5.4 Nano and Muse Spark 1.1 on Rival?

This page shows a side-by-side comparison of GPT-5.4 Nano and Muse Spark 1.1 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.

What is the difference between GPT-5.4 Nano and Muse Spark 1.1?

GPT-5.4 Nano is developed by OpenAI while Muse Spark 1.1 is developed by Meta AI. GPT-5.4 Nano has a 400K token context window vs Muse Spark 1.1's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 Nano or Muse Spark 1.1?

It depends on your use case. GPT-5.4 Nano and Muse Spark 1.1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT-5.4 Nano cost compared to Muse Spark 1.1?

GPT-5.4 Nano costs $0.2/M input tokens and Muse Spark 1.1 costs $1.25/M input tokens. GPT-5.4 Nano is $1.05/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-5.4 Nano and Muse Spark 1.1 on Rival?

This page shows a side-by-side comparison of GPT-5.4 Nano and Muse Spark 1.1 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.

GPT-5.4 Nano vs Muse Spark 1.1: Which Is Better?

Updated Jul 2026

Our Verdict

Muse Spark 1.1

GPT-5.4 NanoRunner-up

No community votes yet. On paper, Muse Spark 1.1 has the edge — bigger model tier, newer, bigger context window.

GPT-5.4 Nano is 3.4x cheaper per token — worth considering if cost matters.

Slight edge

What do GPT-5.4 Nano and Muse Spark 1.1 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.4 Nano

Input

$0.20

6.3× cheaper

Output

$1.25

3.4× cheaper

Muse Spark 1.1

Input

$1.25

Output

$4.25

GPT-5.4 Nano is cheaper on both — 6.3× input, 3.4× output

Writing DNA

Style Comparison

Similarity

30%

GPT-5.4 Nano uses 5.9x more hedging

GPT-5.4 Nano

Muse Spark 1.1

51%Vocabulary61%

21wSentence Length20w

0.58Hedging0.10

7.1Bold3.7

5.5Lists2.0

0.01Emoji0.01

1.39Headings0.52

0.05Transitions0.02

Based on 23 + 29 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 Nano vs Ox AlphaNew provider

GPT-5.4 Nano vs MiniMax M3New provider

GPT-5.4 Nano vs Gemini 3.6 FlashNew provider

Updated Jul 2026

Our Verdict

Muse Spark 1.1

GPT-5.4 NanoRunner-up

No community votes yet. On paper, Muse Spark 1.1 has the edge — bigger model tier, newer, bigger context window.

GPT-5.4 Nano is 3.4x cheaper per token — worth considering if cost matters.

Slight edge

What do GPT-5.4 Nano and Muse Spark 1.1 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5.4 Nano

Input

$0.20

6.3× cheaper

Output

$1.25

3.4× cheaper

Muse Spark 1.1

Input

$1.25

Output

$4.25

GPT-5.4 Nano is cheaper on both — 6.3× input, 3.4× output

Writing DNA

Style Comparison

Similarity

30%

GPT-5.4 Nano uses 5.9x more hedging

GPT-5.4 Nano

Muse Spark 1.1

51%Vocabulary61%

21wSentence Length20w

0.58Hedging0.10

7.1Bold3.7

5.5Lists2.0

0.01Emoji0.01

1.39Headings0.52

0.05Transitions0.02

Based on 23 + 29 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 Nano vs Ox AlphaNew provider

GPT-5.4 Nano vs MiniMax M3New provider

GPT-5.4 Nano vs Gemini 3.6 FlashNew provider