GLM-5-3 (Flagship) vs Muse Spark 1.3 (xhigh)

A direct, empirical evaluation of GLM-5-3 (Flagship) (Zhipu AI & THUDM) against Muse Spark 1.3 (xhigh) (Meta AI).

GLM-5-3 (Flagship)

Developed by Zhipu AI & THUDM · 744B parameters

Complex algorithmic reasoning, multi-step code synthesis, and long-horizon tool execution.

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 GLM-5-3 (Flagship) Muse Spark 1.3 (xhigh)
SWE-bench Verified 54.8% 75.4%
MMLU-Pro 78.4% 88.4%
MATH-500 93.6% 94.8%
Context Window 256,000 tokens 1,000,000 tokens
Input Pricing (per 1M) $0.55 $1.25
Output Pricing (per 1M) $2.19 $5.00

Architectural & Practical Deployment Analysis

Evaluating GLM-5-3 (Flagship) (Zhipu AI & THUDM) alongside Muse Spark 1.3 (xhigh) (Meta AI) highlights key technical trade-offs across neural parameter scale and compute efficiency. GLM-5-3 (Flagship) executes across 744B total parameters with 44B active per token, whereas Muse Spark 1.3 (xhigh) operates on Proprietary Multimodal parameters with Dense Reasoner active per token.

On SWE-bench Verified software engineering tasks, GLM-5-3 (Flagship) achieves 54.8% autonomous resolution rate, compared to 75.4% for Muse Spark 1.3 (xhigh). On complex reasoning benchmarks, GLM-5-3 (Flagship) posts 78.4% on MMLU-Pro and 93.6% on MATH-500, against 88.4% and 94.8% respectively for Muse Spark 1.3 (xhigh).

From an operational economics perspective, processing 10,000,000 mixed tokens (7M input / 3M output) costs approximately $10.42 on GLM-5-3 (Flagship) versus $23.75 on Muse Spark 1.3 (xhigh).

Recommendation: Deploy GLM-5-3 (Flagship) when your infrastructure prioritizes complex algorithmic reasoning, multi-step code synthesis, and long-horizon tool execution.. Deploy Muse Spark 1.3 (xhigh) when workload requirements favor autonomous codebase refactoring, terminal execution, million-token long context retrieval, and agentic workflows..