Head to head · 2026-10-14

Z-AI logoZ.ai: GLM 5.3 Flash vs Anthropic logoAnthropic: Claude Opus 5.5

Data source

Token share

Z-AI logoZ.ai: GLM 5.3 Flash

6.81%

Anthropic logoAnthropic: Claude Opus 5.5

3.36%

30d Δ

Z-AI logoZ.ai: GLM 5.3 Flash

-1.89pp

Anthropic logoAnthropic: Claude Opus 5.5

+2.39pp

Price — $ / M output

Z-AI logoZ.ai: GLM 5.3 Flash

$0.50

Anthropic logoAnthropic: Claude Opus 5.5

$20.00

Context window

Z-AI logoZ.ai: GLM 5.3 Flash

1049k

Anthropic logoAnthropic: Claude Opus 5.5

1000k

Share of tokens over time

Tidelines — LLM usage and market share
Source: OpenRouter (openrouter.ai/rankings), as of 2026-10-14. Vercel AI Gateway data as of 2026-10-14. · tidelines.ai/compare/z-ai-glm-5-3-flash-vs-anthropic-claude-opus-5-5

Detail pages: Z.ai: GLM 5.3 Flash · Anthropic: Claude Opus 5.5