Z.ai: GLM 5.3 FlashX Legal API
Zhipu AI·Vision
GLM-5.3-FlashX-Legal (GLM-Legal) is Z.ai's legal-domain variant of GLM-5.3-FlashX, a native multimodal model that accepts text, image, and video input and produces text. It adds legal-domain mid-training and post-training with reinforcement...
Pricing
Cheapest live price, per 1 million tokens.
Input / 1M tokens
$0.370 OpenRouter
Output / 1M tokens
$1.25 OpenRouter
Cache read / 1M
Repeated prompt prefixes
Cache read is the discounted rate for repeated prompt prefixes (system prompts, agent context).
Capabilities · 7
Specifications
- Context window
- 1.0M
- Max output
- 131K
- Type
- Vision
- Creator
- Zhipu AI
- Live sellers
- 1
- Requests / 24h
- 3
Estimated monthly cost
30 days at the cheapest live price.
Quick start
OpenAI-compatible — change the base URL and key. Get a key from the dashboard.
from openai import OpenAI
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="YOUR_QUBAX_API_KEY",
)
response = client.chat.completions.create(
model="glm-5.3-flashx-legal",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)About Z.ai: GLM 5.3 FlashX Legal
Z.ai: GLM 5.3 FlashX Legal is a multimodal language model developed by Zhipu AI. It's particularly well-suited for analyzing images, screenshots, and visual content, tackling complex, multi-step reasoning problems, orchestrating tool-using agents that call APIs and external services, producing structured outputs for reliable data extraction and handling large contexts of up to 1.0M tokens. Its 1.0M-token context window means you can pass in entire documents, codebases, or conversation histories without losing context. It can write up to 131K tokens in a single response.
As of Nov 3, 2026, Z.ai: GLM 5.3 FlashX Legal costs $0.278 per 1M input tokens and $0.938 per 1M output tokens on Qubax, versus $0.370 / $1.25 on OpenRouter (25% less on input). A typical 1,000 chat requests (2K tokens in, 500 out) come to about $1.02. Pay with USDC, USDT, BTC, ETH or 350+ other coins — no credit card required.
Similar-priced alternatives
Frequently asked questions
How much does the Z.ai: GLM 5.3 FlashX Legal API cost?
On Qubax, Z.ai: GLM 5.3 FlashX Legal costs $0.278 per 1M input tokens and $0.938 per 1M output tokens. This is 25% cheaper than OpenRouter's price of $0.370 per 1M input tokens.
Is the Z.ai: GLM 5.3 FlashX Legal API compatible with OpenAI?
Yes. Qubax provides an OpenAI-compatible API. You can use Z.ai: GLM 5.3 FlashX Legal as a drop-in replacement by changing your base URL to https://api.qubax.ai/v1 and using your Qubax API key. It works with Cline, Cursor, OpenCode, Hermes Agent, and any tool that supports OpenAI APIs.
Why is Z.ai: GLM 5.3 FlashX Legal cheaper on Qubax than OpenRouter?
Qubax sources AI inference from an open compute marketplace on the Base blockchain where GPU providers compete on price. We pass the savings to you — 25% cheaper than OpenRouter's price for Z.ai: GLM 5.3 FlashX Legal.
How do I pay for Z.ai: GLM 5.3 FlashX Legal API usage?
Qubax uses prepaid crypto credits. Top up with USDC, USDT, BTC, ETH, SOL or 350+ other coins and your balance is deducted as you use the API. No credit card or KYC required.
What is the context window of Z.ai: GLM 5.3 FlashX Legal?
Z.ai: GLM 5.3 FlashX Legal supports a context window of 1.0M tokens, allowing you to process large documents, codebases, or long conversations in a single request.
What can I build with Z.ai: GLM 5.3 FlashX Legal?
You can use Z.ai: GLM 5.3 FlashX Legal to analyze images and visual content, tackle complex multi-step reasoning tasks, build autonomous agents that call external tools and APIs, generate structured JSON output for data pipelines and process long documents and entire codebases. Because it's served through Qubax's OpenAI-compatible API, integration into existing apps, agents, or workflows takes just a few lines of code.
How fast and reliable is Z.ai: GLM 5.3 FlashX Legal on Qubax?
Responses stream token by token. Latency depends on the provider and prompt length.
Z.ai: GLM 5.3 FlashX Legal vs Claude Opus 5: which should I choose?
Z.ai: GLM 5.3 FlashX Legal by Zhipu AI and Claude Opus 5 by Anthropic are both strong models in a similar price tier. Z.ai: GLM 5.3 FlashX Legal excels at complex reasoning and supports vision/image inputs. Claude Opus 5 comes from a different lab and may have different strengths depending on your workload. On Qubax, Z.ai: GLM 5.3 FlashX Legal starts at $0.278/1M input tokens while Claude Opus 5 comes in at $0.207/1M, so Claude Opus 5 may be worth considering if you need to minimize per-token cost. Both are available on Qubax with crypto payments and OpenAI-compatible APIs, so you can try each and switch freely.
Can I use Z.ai: GLM 5.3 FlashX Legal for commercial projects?
Yes. Z.ai: GLM 5.3 FlashX Legal on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.
Why use Z.ai: GLM 5.3 FlashX Legal on Qubax?
25% cheaper
Providers compete on price — you get the cheapest healthy seller.
Pay with crypto
350+ coins (BTC, ETH, SOL, USDT, USDC). No card, no KYC.
OpenAI & Anthropic compatible
Drop-in base URL. Works with Cline, Cursor, Claude Code, OpenAI and Anthropic SDKs.