---
id: "z-ai/glm-5.3-flashx-legal"
also: ["z-ai/glm-5.3-flashx-legal-20261102", "vercel/zai/glm-5.3-flashx-legal"]
card_usd_per_m: "0.37 in, 1.25 out, at z-ai/fp8"
cheapest_list_usd_per_m: "0.37 in, 1.25 out, at z-ai/fp8 on openrouter"
cheapest_effective_usd_per_m: "0.0988 in, 1.25 out, at zai on vercel"
context: 1048576
max_output: 131072
input: ["text", "image", "video"]
output: ["text"]
released: "2026-11-02"
reasoning: ["max", "high", "low"]
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["include_reasoning", "max_tokens", "reasoning", "reasoning_effort", "response_format", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "top_k", "top_p"]
endpoints: 2
gateways: "openrouter (1), vercel (1)"
no_training: 1
trains: 0
retains_prompts: 0
---
# Z.ai: GLM 5.3 FlashX Legal

GLM 5.3 FlashX Legal is Z.ai’s model optimized for legal workflows, including contract review, evidence analysis, and compliance research. It helps teams analyze legal documents, cross-check records, and prepare structured findings for further review.