Z.ai: GLM 5.3 Prime (z-ai/glm-5.3-prime) is a chat model from openrouter with a 1M-token context window; proprietary (API-only); capabilities tools, reasoning; input text; output text.
1MContext
131.1KMax output
$2.8$ / 1M in
Pricing
Input
$2.8 / 1M tokens
Output
$8.8 / 1M tokens
Currency
USD
Note
Indicative US list price — verify with the vendor.
Indicative US list price — a reference only, verify with the vendor. Source: litellm. Last verified 2026-09-26.