Which is better: Claude Sonnet 5.5 or Muse Spark 1.2?

Verdict: Claude Sonnet 5.5 ranks higher (#6 vs #32) and wins 4 of 5 shared benchmarks; Muse Spark 1.2 costs less ($1.25/$4.25 vs $2.00/$10.0 per 1M tokens). AskClash compares Claude Sonnet 5.5 and Muse Spark 1.2 side by side across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, AskClash ACB, and context window so you can see which model wins on each benchmark.

How do Claude Sonnet 5.5 and Muse Spark 1.2 compare on coding benchmarks?

The comparison table shows SWE-bench, SWE-Pro, SWE-Atlas, Terminal-Bench, DeepSWE, and coding agent index scores for both Claude Sonnet 5.5 and Muse Spark 1.2 when publicly disclosed.

LLM Comparison

Claude Sonnet 5.5 vs Muse Spark 1.2: benchmark scores, pricing & comparison.

Side-by-side Claude Sonnet 5.5 vs Muse Spark 1.2 comparison across SWE-bench, GPQA, HLE, Terminal-Bench, coding agent scores, token pricing, context window, and AskClash RWT. Green marks the winner on each benchmark.

Verdict: Claude Sonnet 5.5 ranks higher (#6 vs #32) and wins 4 of 5 shared benchmarks; Muse Spark 1.2 costs less ($1.25/$4.25 vs $2.00/$10.0 per 1M tokens).

Open live leaderboard Claude Sonnet 5.5 model page Muse Spark 1.2 model page

Rank #6 vs #32AskClash overall scores 73.7 vs 55.7.

Pricing $2.00/$10.0 vs $1.25/$4.25Input and output token prices per 1M tokens when published.

Proprietary vs ProprietaryAnthropic vs Meta.

Claude Sonnet 5.5 vs Muse Spark 1.2 benchmark comparison

Green cells highlight the winning model for each metric. Scores are cached from the AskClash LLM leaderboard snapshot.

Metric	Claude Sonnet 5.5	Muse Spark 1.2
Overall Score	73.7	55.7
Leaderboard Rank	#6	#32
ACB	76.6	54.8
RWT	—	7.5
HLE	64.5	45.5
GPQA	—	90.4
SWE-Pro	81.3	—
Terminal-Bench	83.2	—
DeepSWE	71.0	59.0
GDPval-AA	1844.2	1481.6
MCP Atlas	—	82.2
Finance Agent	58.1	60.6
Input Price (per 1M tokens)	$2.00	$1.25
Output Price (per 1M tokens)	$10.0	$4.25
Context Window	1M	1M
Benchmarks Published	10	10

Claude Sonnet 5.5 vs Muse Spark 1.2 head-to-head charts

Claude Sonnet 5.5 leads 5 and Muse Spark 1.2 leads 1 of 6 shared benchmarks. Muse Spark 1.2 is cheaper on a defined 1M-input / 200K-output workload. Charts show only benchmarks both models publish.

Claude Sonnet 5.5Muse Spark 1.2

Overall

73.7Claude Sonnet 5.5

55.7Muse Spark 1.2

ACB

76.6Claude Sonnet 5.5

54.8Muse Spark 1.2

HLE

64.5Claude Sonnet 5.5

45.5Muse Spark 1.2

DeepSWE

71.0Claude Sonnet 5.5

59.0Muse Spark 1.2

GDPval-AA

1844.2Claude Sonnet 5.5

1481.6Muse Spark 1.2

Finance Agent

58.1Claude Sonnet 5.5

60.6Muse Spark 1.2

Claude Sonnet 5.5

Input$2.00

Output$10.0

Workload$4.00

Context1M

Muse Spark 1.2

Input$1.25

Output$4.25

Workload$2.10

Context1M

Workload = published cost of 1M input + 200K output tokens. Open the live leaderboard for interactive compare charts.

More Claude Sonnet 5.5 and Muse Spark 1.2 comparisons

Explore how Claude Sonnet 5.5 and Muse Spark 1.2 stack up against other top-ranked LLMs.

Claude Fable 5.1 vs Claude Sonnet 5.5 Claude Fable 5.1 vs Muse Spark 1.2 Claude Opus 5.5 vs Claude Sonnet 5.5 Claude Opus 5.5 vs Muse Spark 1.2 Claude Fable 5 vs Claude Sonnet 5.5 Claude Fable 5 vs Muse Spark 1.2 Claude Opus 5 vs Claude Sonnet 5.5 Claude Opus 5 vs Muse Spark 1.2 GPT-5.6 Sol vs Claude Sonnet 5.5 GPT-5.6 Sol vs Muse Spark 1.2

How to read this comparison

Benchmark scores

Higher is better for all benchmark scores (SWE-bench, GPQA, HLE, Terminal-Bench, etc.). Green marks the model with the higher score.

Token pricing

Lower is better for input and output prices. Green marks the cheaper model per 1M tokens.

Coverage matters

Models with fewer disclosed benchmark cells may have inflated percentile scores. Check the benchmark cell count for context.

This comparison page is generated from the AskClash LLM leaderboard cache. Open the live leaderboard for real-time scores and interactive filtering.