Claude Sonnet 5.5 vs Muse Spark 1.3 (xhigh)
A direct, empirical evaluation of Claude Sonnet 5.5 (Anthropic) against Muse Spark 1.3 (xhigh) (Meta AI).
Claude Sonnet 5.5
Developed by Anthropic · Proprietary Frontier Dynamic Hybrid Reasoner parameters
Terminal-Bench 4.0 execution (70.6%), SWE-bench Verified coding (82.4%), GitHub Copilot multi-file edits, and low-latency autonomous agentic coding at $2/$10 pricing.
Muse Spark 1.3 (xhigh)
Developed by Meta AI · Proprietary Multimodal parameters
Autonomous codebase refactoring, terminal execution, million-token long context retrieval, and agentic workflows.
| Metric | Claude Sonnet 5.5 | Muse Spark 1.3 (xhigh) |
|---|---|---|
| SWE-bench Verified | 82.4% | 75.4% |
| MMLU-Pro | 88.4% | 88.4% |
| MATH-500 | 95.2% | 94.8% |
| Context Window | 1,000,000 tokens | 1,000,000 tokens |
| Input Pricing (per 1M) | $2.00 | $1.25 |
| Output Pricing (per 1M) | $10.00 | $5.00 |