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 context window and up to 128K output tokens, and targets coding and agentic workloads, including long-horizon multi-turn agent orchestration, real-time conversation, and streaming code generation.
$1.40market price $2.80
$0.28market price $0.56
$4.40market price $8.80
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-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.
On NagaAI, GLM 5.3 Prime costs $1.40 per 1M input tokens and $4.40 per 1M output tokens. You pay only for what you use, with no subscription.
GLM 5.3 Prime reads up to 1M tokens in one request, counting the prompt and the answer together.
Yes. GLM 5.3 Prime 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 FlashXZ.aiGLM 5.3 FlashZ.aiGLM 5.3Z.aiGLM 5.2Z.aiGLM 5.1Z.ai