67% offZ.ai: GLM 5.3 Prime API
Zhipu AI·Text· 99.8% success (7d)
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...
Pricing
Cheapest live price, per 1 million tokens.
Input / 1M tokens
$2.80 OpenRouter
Output / 1M tokens
$8.80 OpenRouter
Cache read / 1M
Repeated prompt prefixes
Cache read is the discounted rate for repeated prompt prefixes (system prompts, agent context).
Capabilities · 8
Specifications
- Context window
- 1M
- Max output
- 131K
- Type
- Text
- Creator
- Zhipu AI
- Live sellers
- 89
- Requests / 24h
- 3,506
Price history · 60 days
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-prime",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)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. It can write up to 131K tokens in a single response.
As of Nov 15, 2026, Z.ai: GLM 5.3 Prime costs $0.912 per 1M input tokens and $3.65 per 1M output tokens on Qubax, versus $2.80 / $8.80 on OpenRouter (67% less on input). A typical 1,000 chat requests (2K tokens in, 500 out) come to about $3.65. Measured availability over the last 7 days: 99.8%. 89 independent compute providers currently serve it, so requests fail over automatically. It handled 3,506 requests on Qubax in the last 24 hours. 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 Prime API cost?
On Qubax, Z.ai: GLM 5.3 Prime costs $0.912 per 1M input tokens and $3.65 per 1M output tokens. This is 67% 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 — 67% 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. 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 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?
You can use Z.ai: GLM 5.3 Prime to 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 Prime on Qubax?
Measured time to first token (p95) on Qubax is 29.9s. Its 7-day success rate is 99.8%. Responses stream token by token. 89 sellers serve it, so if one is slow or down the request moves to the next.
Z.ai: GLM 5.3 Prime vs Claude Opus 5: which should I choose?
Z.ai: GLM 5.3 Prime by Zhipu AI and Claude Opus 5 by Anthropic are both strong models in a similar price tier. Z.ai: GLM 5.3 Prime excels at complex reasoning. Claude Opus 5 comes from a different lab and may have different strengths depending on your workload. On Qubax, Z.ai: GLM 5.3 Prime starts at $0.912/1M input tokens versus Claude Opus 5's $1.35/1M — 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.
Why use Z.ai: GLM 5.3 Prime on Qubax?
67% 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.