Performance Benchmarks for glm-5.3-flash

Analyze how glm-5.3-flash stacks up against other frontier models in terms of cost-to-performance and raw intelligence (LMArena Elo).

2026 Performance Summary

🚀 Intelligence (Elo): 1474
💰 API Cost (Input): $3.6e-8 / 1M tokens
⚡ API Cost (Output): $9e-7 / 1M tokens
⏱️ Real-world Throughput: 11 tokens/s

Analysis: While glm-5.3-flash is a capable model, it is currently outperformed in efficiency by hy4-preview. hy4-preview sits higher on the Pareto line, offering approximately 157 points more intelligence (Elo) for a comparable or lower API cost.

Highly Recommended Alternatives

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
hy4-preview	1632	$8.34e-7	62
claude-haiku-5.5-high	1585	$1e-7	190
glm-5.3-max	1479	$7.9e-8	83
glm-5.2-max	1475	$3.7e-8	62
deepseek-v4.1-flash-max	1475	$1.368e-8	13

*These models represent the Pareto Frontier (optimal cost-to-performance).*