GPT-5.4 mini 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 mini
67
Muse Spark
76
Pick Muse Spark if you want the stronger benchmark profile. GPT-5.4 mini only becomes the better choice if agentic is the priority or you need the larger 400K context window.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | GPT-5.4 mini | Δ | Muse Spark |
|---|---|---|---|
| Agentic | 65.7 | ← 6.7 | 59.0 |
| Multimodal | 76.6 | → 5.9 | 82.5 |
| Knowledge | 47.8 | → 2.6 | 50.4 |
| Coding | — | — | 61.7 |
| Reasoning | — | — | 42.5 |
Operational Comparison
GPT-5.4 mini
Muse Spark
$0.75 / $4.5
N/A
201 t/s
N/A
3.85s
N/A
400K
262K
Quick Verdict
Pick Muse Spark if you want the stronger benchmark profile. GPT-5.4 mini only becomes the better choice if agentic is the priority or you need the larger 400K context window.
Muse Spark is clearly ahead on the provisional aggregate, 76 to 67. 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 76.6. The single biggest benchmark swing on the page is HLE, 41.5% to 50.4%. GPT-5.4 mini does hit back in agentic, so the answer changes if that is the part of the workload you care about most.
GPT-5.4 mini 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 mini or Muse Spark?
Muse Spark is ahead on BenchLM's provisional leaderboard, 76 to 67. The biggest single separator in this matchup is HLE, where the scores are 41.5% and 50.4%.
Which is better for knowledge tasks, GPT-5.4 mini or Muse Spark?
Muse Spark has the edge for knowledge tasks in this comparison, averaging 50.4 versus 47.8. 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 mini or Muse Spark?
GPT-5.4 mini has the edge for agentic tasks in this comparison, averaging 65.7 versus 59. 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 mini or Muse Spark?
Muse Spark has the edge for multimodal and grounded tasks in this comparison, averaging 82.5 versus 76.6. 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.