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Models / Z.ai

GLM 5.3 FlashX API pricing

$0.0488 in, $0.1625 out per million tokens, 35% under Z.ai's list price.

glm-5.3-flashxmanaged routeOpenAI SDK

Price · per million tokens, USD

Get a key
TokensZ.ai list priceUplinkSwitchSaving
Input$0.075$0.0488-35%
Cached input—$0.045—
Output$0.25$0.1625-35%
List price: Z.ai's published rate, read October 2026.
Real-model check: Steady since Oct 23

Also try

GLM 5.3 FlashX API key · base URL and setup

  1. Create a key in the console at uplinkswitch.ai/console. Credit is prepaid from $10 with no subscription, and the key works at once.
  2. Point your SDK or tool at https://api.uplinkswitch.com/v1, for example with OPENAI_BASE_URL, and send the key as the bearer token.
  3. Send glm-5.3-flashx as the model. The same key calls every other model in the catalog.
Python · OpenAI SDK
from openai import OpenAI

client = OpenAI(
    base_url="https://api.uplinkswitch.com/v1",
    api_key="sk-uplink-live-...",
)

completion = client.chat.completions.create(
    model="glm-5.3-flashx",
    messages=[{"role": "user", "content": "Summarize this in one line."}],
)
print(completion.choices[0].message.content)
TypeScript · OpenAI SDK
import OpenAI from 'openai';

const client = new OpenAI({
  baseURL: 'https://api.uplinkswitch.com/v1',
  apiKey: 'sk-uplink-live-...',
});

const completion = await client.chat.completions.create({
  model: 'glm-5.3-flashx',
  messages: [{ role: 'user', content: 'Summarize this in one line.' }],
});
console.log(completion.choices[0].message.content);
curl
curl https://api.uplinkswitch.com/v1/chat/completions \
  -H "authorization: Bearer sk-uplink-live-..." \
  -H "content-type: application/json" \
  -d '{"model":"glm-5.3-flashx","messages":[{"role":"user","content":"Hello"}]}'
Guides: Cursor, Cline, Roo Code, Kilo Code, SDKs.

What would it cost? · paste a prompt, priced before you send it

Input is counted at about 4 characters per token.

Cheapest first. A real request is billed on the provider's own token count. Same estimate as JSON: POST https://api.uplinkswitch.com/v1/estimate, no key needed.

More from Z.ai

GLM 5.3 FlashX questions

GLM 5.3 FlashX is a model from Z.ai. Through UplinkSwitch it answers the OpenAI SDK on one key as glm-5.3-flashx.

$0.0488 per million input tokens and $0.1625 per million output tokens, with cached input at $0.045. Z.ai's list price is $0.075 and $0.25, so this is 35% under Z.ai's list price.

It is pay as you go: prepaid credit from $10, with no subscription or monthly fee, billed per token. A 1,000-token prompt with a 500-token reply costs about $0.0001.

glm-5.3-flashx. Send it as the model through the OpenAI SDK with base URL https://api.uplinkswitch.com/v1.

Create one in the console at uplinkswitch.ai/console: prepaid credit from $10, no subscription, and the key is live at once. The same key calls GLM 5.3 FlashX and every other model in the catalog; send it as the bearer token with base URL https://api.uplinkswitch.com/v1.

Every day each model gets the same test prompt, and the results are public on /proof. GLM 5.3 FlashX's latest result: Steady since Oct 23.
Read: GLM API cost per request, October 2026: a chat turn and a long document.
Get a key · All models