GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves on GLM-5.2 in coding and in the balance between performance and token efficiency.
$0.035market price $0.0699
$0.026market price $0.052
$0.44market price $0.88
Throughput is how fast the model writes (tokens per second, higher is better). Time to first token is how long before the answer starts (lower is better).
Share of requests served without a server error. Client errors (4xx) do not count.
Works with the OpenAI SDK pointed at our base URL. Every parameter is in the API reference.
Tokens processed per day on NagaAI.
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves on GLM-5.2 in coding and in the balance between performance and token efficiency.
On NagaAI, GLM 5.3 costs $0.035 per 1M input tokens and $0.44 per 1M output tokens. You pay only for what you use, with no subscription.
GLM 5.3 reads up to 1.0M tokens in one request, counting the prompt and the answer together.
Yes. GLM 5.3 can call your functions as tools and can answer in a JSON schema you give it.
It takes text as input and returns text.
Create an API key, copy the model ID from the top of this page and send requests with the OpenAI or Anthropic SDK pointed at NagaAI. The API section on this page has a ready example.
GLM-5.3-FlashX-LegalZ.ai$0.185 / $0.625 per 1MGLM 5.3 PrimeZ.aiGLM 5.3 FlashXZ.aiGLM 5.3 FlashZ.aiGLM 5.2Z.aiGLM 5.1Z.ai