Claude Opus 4.8 vs Muse Spark 1.1
Head-to-head comparison across 4benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Claude Opus 4.8 leads for most workloads.
Based on BenchLM composite scores, July 2026.
Claude Opus 4.8
86
Muse Spark 1.1
78
Verified leaderboard positions: Claude Opus 4.8 #3 · Muse Spark 1.1 unranked
Pick Claude Opus 4.8 if you want the stronger benchmark profile. Muse Spark 1.1 only becomes the better choice if multimodal & grounded is the priority.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Claude Opus 4.8 | Δ | Muse Spark 1.1 |
|---|---|---|---|
| Coding | 76.4 | ← 14.9 | 61.5 |
| Multimodal | 77.0 | → 11.4 | 88.4 |
| Knowledge | 62.7 | ← 0.6 | 62.1 |
| Agentic | 80.3 | → 0.1 | 80.4 |
| Math | 96.7 | — | — |
Operational Comparison
Claude Opus 4.8
Muse Spark 1.1
$5 / $25
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1M
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Quick Verdict
Pick Claude Opus 4.8 if you want the stronger benchmark profile. Muse Spark 1.1 only becomes the better choice if multimodal & grounded is the priority.
Claude Opus 4.8 is clearly ahead on the provisional aggregate, 86 to 78. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Opus 4.8's sharpest advantage is in coding, where it averages 76.4 against 61.5. The single biggest benchmark swing on the page is SWE-bench Pro, 69.2% to 61.5%. Muse Spark 1.1 does hit back in multimodal & grounded, so the answer changes if that is the part of the workload you care about most.
Benchmark Deep Dive
Frequently Asked Questions (5)
Which is better, Claude Opus 4.8 or Muse Spark 1.1?
Claude Opus 4.8 is ahead on BenchLM's provisional leaderboard, 86 to 78. The biggest single separator in this matchup is SWE-bench Pro, where the scores are 69.2% and 61.5%.
Which is better for knowledge tasks, Claude Opus 4.8 or Muse Spark 1.1?
Claude Opus 4.8 has the edge for knowledge tasks in this comparison, averaging 62.7 versus 62.1. Inside this category, HLE is the benchmark that creates the most daylight between them.
Which is better for coding, Claude Opus 4.8 or Muse Spark 1.1?
Claude Opus 4.8 has the edge for coding in this comparison, averaging 76.4 versus 61.5. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Claude Opus 4.8 or Muse Spark 1.1?
Muse Spark 1.1 has the edge for agentic tasks in this comparison, averaging 80.4 versus 80.3. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.
Which is better for multimodal and grounded tasks, Claude Opus 4.8 or Muse Spark 1.1?
Muse Spark 1.1 has the edge for multimodal and grounded tasks in this comparison, averaging 88.4 versus 77. Inside this category, CharXiv is the benchmark that creates the most daylight between them.
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