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models / Z.ai / GLM 5.3 Flash

GLM 5.3 Flash

textzai-org/glm-5.3-flashZDR supported

The first natively multimodal model in the GLM-5 series. With 320B total parameters and just 18B active parameters, it outperforms GLM-5.2 across benchmarks and real-world workloads at one-tenth the price, while approaching Claude Opus 4.8 on coding and agentic benchmarks.

$0.50list priceper 1M output tokens
pricing
unitlist → Elite price
per 1M cached input tokens$0.03
per 1M input tokens$0.15
per 1M output tokens$0.50

No Elite discount on this model right now: everyone pays the list price.

Everyone pays the list price. Reaching Elite (hold or stake 1,337 $XAVA, or hold 1,337,000 $XINF) unlocks the Elite price and a bigger buyback of your token. How it works

openai sdk (python)
from openai import OpenAI

client = OpenAI(
    base_url="https://www.zinf.ai/v1",
    api_key="xk_live_...",  # your Xava Inference key
)

r = client.chat.completions.create(
    model="zai-org/glm-5.3-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)
curl
curl https://www.zinf.ai/v1/chat/completions \
  -H "Authorization: Bearer $XINF_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"zai-org/glm-5.3-flash","messages":[{"role":"user","content":"Hello!"}]}'
limits
providerZ.ai
typetext
context window1,310,720 tokens
max output—
prompt storagenone
provider retentionnone ZDR supported
livesoon
requests 24h—
p50 latency—
uptime 7d—