GLM 5.3 vs Claude Opus 5.5

GLM 5.3Claude Opus 5.5
Performance score1478 pts (#21)1504 pts (#3)
Usage · 7 days3.06T tokens (#11)2.93T tokens (#12)
Output price$4.4 per 1M tokens$20 per 1M tokens
Input price$1.4 per 1M tokens$4 per 1M tokens
Context length1.05M tokens1M tokens
ReleasedAug 18, 2026Sep 22, 2026

Source: OpenRouter (usage Sep 30 – Oct 6 · prices), Arena (performance · quality) · CC BY 4.0. Prices are converted at fixed exchange rates.