Z.ai: GLM 5.3 Prime
Z.ai: GLM 5.3 Prime is a general-purpose chat-tuned model. Available via Z.ai. 1,000,000-token context. Mid-tier pricing.
Z.ai: GLM 5.3 Prime is a efficient AI model from Z.ai. It costs $2.80 per million input tokens and $8.80 per million output tokens (blended $4.60/M), with a 1,000,000-token context window.
RatesUSD per million tokens. Blend is 70% input, 30% output, our calculation.
From OpenRouter's listing, read on 11 Nov 2026.
- Solid general chat performance
- Reasonable instruction following
- General chat
- Drafting and rewriting
- Personal productivity
Benchmarks
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How much does Z.ai: GLM 5.3 Prime cost?
Z.ai: GLM 5.3 Prime costs $2.80 per million input tokens and $8.80 per million output tokens, for a blended reference rate of $4.60 per million tokens.
What is Z.ai: GLM 5.3 Prime's context window?
Z.ai: GLM 5.3 Prime supports up to 1,000,000 tokens of context in a single request.
What is Z.ai: GLM 5.3 Prime best for?
Z.ai: GLM 5.3 Prime is well suited to Solid general chat performance, Reasonable instruction following and General chat.
Who makes Z.ai: GLM 5.3 Prime?
Z.ai: GLM 5.3 Prime is developed and served by Z.ai.