GPT-5.4 nano vs Muse Spark
Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Muse Spark leads for most workloads.
Based on BenchLM composite scores, July 2026.
GPT-5.4 nano
62
Muse Spark
76
Pick Muse Spark if you want the stronger benchmark profile. GPT-5.4 nano only becomes the better choice if you need the larger 400K context window.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | GPT-5.4 nano | Δ | Muse Spark |
|---|---|---|---|
| Multimodal | 66.1 | → 16.4 | 82.5 |
| Agentic | 42.9 | → 16.1 | 59.0 |
| Knowledge | 43.8 | → 6.6 | 50.4 |
| Coding | — | — | 61.7 |
| Reasoning | — | — | 42.5 |
Operational Comparison
GPT-5.4 nano
Muse Spark
$0.2 / $1.25
N/A
191 t/s
N/A
3.64s
N/A
400K
262K
Quick Verdict
Pick Muse Spark if you want the stronger benchmark profile. GPT-5.4 nano only becomes the better choice if you need the larger 400K context window.
Muse Spark is clearly ahead on the provisional aggregate, 76 to 62. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Muse Spark's sharpest advantage is in multimodal & grounded, where it averages 82.5 against 66.1. The single biggest benchmark swing on the page is MMMU-Pro, 66.1% to 80.4%.
GPT-5.4 nano gives you the larger context window at 400K, compared with 262K for Muse Spark.
Benchmark Deep Dive
Frequently Asked Questions (4)
Which is better, GPT-5.4 nano or Muse Spark?
Muse Spark is ahead on BenchLM's provisional leaderboard, 76 to 62. The biggest single separator in this matchup is MMMU-Pro, where the scores are 66.1% and 80.4%.
Which is better for knowledge tasks, GPT-5.4 nano or Muse Spark?
Muse Spark has the edge for knowledge tasks in this comparison, averaging 50.4 versus 43.8. Inside this category, AA-Omniscience Index is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, GPT-5.4 nano or Muse Spark?
Muse Spark has the edge for agentic tasks in this comparison, averaging 59 versus 42.9. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.
Which is better for multimodal and grounded tasks, GPT-5.4 nano or Muse Spark?
Muse Spark has the edge for multimodal and grounded tasks in this comparison, averaging 82.5 versus 66.1. Inside this category, AA-MMMU-Pro is the benchmark that creates the most daylight between them.
Related Comparisons
Explore More
The AI models change fast. We track them for you.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.