Z.AI · MultimodalReleased 2026-11-02

glm-5.3-flashx-legal

zai/glm-5.3-flashx-legal id

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.

Tool useReasoningStructured outputChat
Type
Use glm-5.3-flashx-legal
# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$
$ const { text } = await generateText({
$ model: 'zai/glm-5.3-flashx-legal',
$ baseURL: 'https://synapse.garden/api/v1',
$ apiKey: process.env.MG_KEY,
$ prompt: 'Why is the sky blue?',
$ })
1M
CONTEXT WINDOW
131.1K
MAX OUTPUT
$0.407/M
INPUT · PER M
$1.38/M
OUTPUT · PER M
PRICING

List prices, every modality.

RatePer million tokens · USD
Input$0.407/M
Output$1.38/M
Cache read$0.083/M
Honest list pricesHow we calculate prices
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FAQ · GLM-5.3-FLASHX-LEGAL

Frequently asked

01 / 04

How do I call glm-5.3-flashx-legal from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘zai/glm-5.3-flashx-legal’ and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does glm-5.3-flashx-legal cost?

Input: $0.407/M per million tokens. Output: $1.38/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for glm-5.3-flashx-legal?

glm-5.3-flashx-legal supports a context window of 1M tokens, with a maximum output of 131.1K tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try glm-5.3-flashx-legal in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.