GPT-5.4 nano vs Muse Spark 1.1
Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Muse Spark 1.1 leads for most workloads.
Based on BenchLM composite scores, July 2026.
GPT-5.4 nano
62
Muse Spark 1.1
78
Pick Muse Spark 1.1 if you want the stronger benchmark profile. GPT-5.4 nano only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | GPT-5.4 nano | Δ | Muse Spark 1.1 |
|---|---|---|---|
| Agentic | 42.9 | → 37.5 | 80.4 |
| Multimodal | 66.1 | → 22.3 | 88.4 |
| Knowledge | 43.8 | → 18.3 | 62.1 |
| Coding | — | — | 61.5 |
Operational Comparison
GPT-5.4 nano
Muse Spark 1.1
$0.2 / $1.25
N/A
191 t/s
N/A
3.64s
N/A
400K
1M
Quick Verdict
Pick Muse Spark 1.1 if you want the stronger benchmark profile. GPT-5.4 nano only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Muse Spark 1.1 is clearly ahead on the provisional aggregate, 78 to 62. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Muse Spark 1.1's sharpest advantage is in agentic, where it averages 80.4 against 42.9. The single biggest benchmark swing on the page is OSWorld-Verified, 39% to 80.8%.
Muse Spark 1.1 gives you the larger context window at 1M, compared with 400K for GPT-5.4 nano.
Benchmark Deep Dive
Frequently Asked Questions (4)
Which is better, GPT-5.4 nano or Muse Spark 1.1?
Muse Spark 1.1 is ahead on BenchLM's provisional leaderboard, 78 to 62. The biggest single separator in this matchup is OSWorld-Verified, where the scores are 39% and 80.8%.
Which is better for knowledge tasks, GPT-5.4 nano or Muse Spark 1.1?
Muse Spark 1.1 has the edge for knowledge tasks in this comparison, averaging 62.1 versus 43.8. Inside this category, HLE w/o tools is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, GPT-5.4 nano or Muse Spark 1.1?
Muse Spark 1.1 has the edge for agentic tasks in this comparison, averaging 80.4 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 1.1?
Muse Spark 1.1 has the edge for multimodal and grounded tasks in this comparison, averaging 88.4 versus 66.1. GPT-5.4 nano stays close enough that the answer can still flip depending on your workload.
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