GLM 5.3 Flashx API Pricing

GLM 5.3 Flashx pricing by provider

1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

What GLM 5.3 Flashx costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

GLM 5.3 Flashx cost calculator

At Tencent TokenHub's price ($0.37 input, $1.25 output per 1M tokens), 10,000 requests a day with 1,000 input and 500 output tokens each cost $9.95 a day, about $299 a month. Change the numbers for your workload, or compare it with other models.

GLM 5.3 Flashx features

• Function calling
• Structured output
• Image input
• Video input
• Reasoning
• Prompt caching

Use GLM 5.3 Flashx with LiteLLM

Call GLM 5.3 Flashx through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="tencent/glm-5.3-flashx",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: glm-5.3-flashx
    litellm_params:
      model: tencent/glm-5.3-flashx
      # credentials: see the provider's LiteLLM docs page

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $LITELLM_API_KEY" \
  -d '{
    "model": "glm-5.3-flashx",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

GLM 5.3 Flashx FAQ

More Z.ai models

• GLM 5.3 Fp4$1.12 / $4.40 per 1M tokens
• GLM 5.2 Fast Preview$2.254 / $7.889 per 1M tokens
• GLM 5 Turbo$1.20 / $4 per 1M tokens
• GLM 5.3$1.40 / $4.40 per 1M tokens
• GLM 5.3 Flash$0.15 / $0.50 per 1M tokens
• GLM 5.1 Nvfp4 Mtp$1.40 / $4.40 per 1M tokens
• GLM 5.2$1.40 / $4.40 per 1M tokens
• GLM 5.1$1.40 / $4.40 per 1M tokens