Z.ai: GLM 5.3 Prime API
Zhipu AI
GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× the output throughput through inference acceleration. It supports text input and output with a 1M-token...
About Z.ai: GLM 5.3 Prime
Z.ai: GLM 5.3 Prime is a language model developed by Zhipu AI. It's particularly well-suited for 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 1M tokens. Its 1M-token context window means you can pass in entire documents, codebases, or conversation histories without losing context.
As of Sep 30, 2026, Z.ai: GLM 5.3 Prime costs $0.910 per 1M input tokens and $2.86 per 1M output tokens on Qubax, versus $2.80 / $8.80 on OpenRouter (68% less on input). A typical 1,000 chat requests (2K tokens in, 500 out) come to about $3.25. Pay with USDC, USDT, BTC, ETH or 200+ other coins — no credit card required.
Pricing
| Token Type | Qubax | OpenRouter | You Save |
|---|---|---|---|
| Input (per 1M tokens) | $0.910 | $2.80 | 68% |
| Output (per 1M tokens) | $2.86 | $8.80 | 68% |
| Cache read (per 1M tokens) | $0.728 | — | — |
Prices per 1 million tokens. Pay with 200+ cryptocurrencies. Cache read is the discounted rate providers offer for repeated prompt prefixes.
Estimated Monthly Cost
Specifications
Use Cases
Capabilities
Quick Start
from openai import OpenAI
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="qbx_live_YOUR_API_KEY",
)
response = client.chat.completions.create(
model="glm-5.3-prime",
messages=[
{"role": "user", "content": "Hello!"}
],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.qubax.ai/v1",
apiKey: "qbx_live_YOUR_API_KEY",
});
const response = await client.chat.completions.create({
model: "glm-5.3-prime",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);curl https://api.qubax.ai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer qbx_live_YOUR_API_KEY" \
-d '{
"model": "glm-5.3-prime",
"messages": [{"role": "user", "content": "Hello!"}]
}'Get your API key from the dashboard.
Why use Z.ai: GLM 5.3 Prime on Qubax?
68% Cheaper
Up to 68% off OpenRouter prices
Pay with Crypto
200+ coins (BTC, ETH, SOL, USDT, USDC & more). No credit card needed.
OpenAI Compatible
Drop-in replacement. Works with Cline, Cursor, any tool.
More from Zhipu AI
Compare Z.ai: GLM 5.3 Prime with alternatives
| Model | Provider | Input / 1M | Output / 1M | vs Z.ai: GLM 5.3 Prime |
|---|---|---|---|---|
| Z.ai: GLM 5.3 Prime | Zhipu AI | $0.910 | $2.86 | — |
| Hermes 3 Llama 3.1 405b (Web) | Meta | $0.958 | $2.61 | More expensive |
| Kimi K3 | Moonshot AI | $0.526 | $2.10 | Cheaper |
| GPT-5.4 Image 2 | OpenAI | $0.832 | $1.56 | Cheaper |
| Sakana: Fugu Max | Other | $0.650 | $1.95 | Cheaper |
Frequently Asked Questions
How much does the Z.ai: GLM 5.3 Prime API cost?
On Qubax, Z.ai: GLM 5.3 Prime costs $0.910 per 1M input tokens and $2.86 per 1M output tokens. This is 68% cheaper than OpenRouter's price of $2.80 per 1M input tokens.
Is the Z.ai: GLM 5.3 Prime API compatible with OpenAI?
Yes. Qubax provides an OpenAI-compatible API. You can use Z.ai: GLM 5.3 Prime 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 Prime 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 — 68% cheaper than OpenRouter's price for Z.ai: GLM 5.3 Prime.
How do I pay for Z.ai: GLM 5.3 Prime API usage?
Qubax uses prepaid crypto credits. Deposit USDC on the Base chain and your balance is automatically deducted as you use the API. No credit card required. Top up from $3.
What is the context window of Z.ai: GLM 5.3 Prime?
Z.ai: GLM 5.3 Prime supports a context window of 1M 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 Prime?
Z.ai: GLM 5.3 Prime is versatile enough for a wide range of applications. You can use it to tackle complex multi-step reasoning tasks, build autonomous agents that call external tools and APIs, generate structured JSON output for data pipelines, process long documents and entire codebases, and more. 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 is Z.ai: GLM 5.3 Prime on Qubax?
Z.ai: GLM 5.3 Prime on Qubax supports streaming responses, so tokens begin arriving in real time as they're generated. Latency depends on the provider and prompt complexity. Qubax routes requests through an intelligent routing layer, which selects the fastest available compute provider for each request — so you get competitive latency at a lower price.
Z.ai: GLM 5.3 Prime vs Hermes 3 Llama 3.1 405b (Web): which should I choose?
Z.ai: GLM 5.3 Prime by Zhipu AI and Hermes 3 Llama 3.1 405b (Web) by Meta are both strong models in a similar price tier. Z.ai: GLM 5.3 Prime excels at complex reasoning. Hermes 3 Llama 3.1 405b (Web) comes from a different lab and may have different strengths depending on your workload. On Qubax, Z.ai: GLM 5.3 Prime starts at $0.910/1M input tokens versus Hermes 3 Llama 3.1 405b (Web)'s $0.958/1M — making Z.ai: GLM 5.3 Prime the more cost-effective option for high-volume workloads. 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 Prime for commercial projects?
Yes. Z.ai: GLM 5.3 Prime on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.
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