Claude Haiku 4.5 vs Muse Spark 1.1
Head-to-head comparison across 1benchmark 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.
Claude Haiku 4.5
55
Muse Spark 1.1
78
Pick Muse Spark 1.1 if you want the stronger benchmark profile. Claude Haiku 4.5 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Claude Haiku 4.5 | Δ | Muse Spark 1.1 |
|---|---|---|---|
| Coding | 73.3 | ← 11.8 | 61.5 |
| Agentic | — | — | 80.4 |
| Knowledge | — | — | 62.1 |
| Multimodal | — | — | 88.4 |
Operational Comparison
Claude Haiku 4.5
Muse Spark 1.1
$1 / $5
N/A
N/A
N/A
N/A
N/A
200K
1M
Quick Verdict
Pick Muse Spark 1.1 if you want the stronger benchmark profile. Claude Haiku 4.5 only becomes the better choice if coding is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Muse Spark 1.1 is clearly ahead on the provisional aggregate, 78 to 55. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Muse Spark 1.1 is the reasoning model in the pair, while Claude Haiku 4.5 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Muse Spark 1.1 gives you the larger context window at 1M, compared with 200K for Claude Haiku 4.5.
Benchmark Deep Dive
Frequently Asked Questions (2)
Which is better, Claude Haiku 4.5 or Muse Spark 1.1?
Muse Spark 1.1 is ahead on BenchLM's provisional leaderboard, 78 to 55.
Which is better for coding, Claude Haiku 4.5 or Muse Spark 1.1?
Claude Haiku 4.5 has the edge for coding in this comparison, averaging 73.3 versus 61.5. Muse Spark 1.1 stays close enough that the answer can still flip depending on your workload.
Related Comparisons
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.