How much does GLM 5.3 Prime cost?

GLM 5.3 Prime costs $2.80 per million input tokens and $8.80 per million output tokens on standard pricing. A workload of 20M input and 5M output tokens a month is about $100.

What is the context length of GLM 5.3 Prime?

GLM 5.3 Prime accepts up to 1,000,000 tokens (1M) of input and can return up to 131,072 tokens in one response.

Does GLM 5.3 Prime support tool calling and structured outputs?

Yes, GLM 5.3 Prime supports function/tool calling and structured (JSON) outputs. Supported tools: Function calling, JSON mode, Reasoning, Log probabilities, Deterministic seed, Prompt caching.

What inputs and outputs does GLM 5.3 Prime support?

GLM 5.3 Prime accepts Text as input and produces Text as output.

When was GLM 5.3 Prime released?

GLM 5.3 Prime was released by Z.ai in 2026-09-23.

GLM 5.3 Prime

glm-5.3-prime

API Provider site

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... Built by Z.ai.

Prices updated recently

Input price

$2.80

per 1M tokens · Standard

Output price

$8.80

per 1M tokens · Standard

Input limit

tokens

Output limit

131K

tokens

Input formats

TextImageVideoAudioPDF

Output formats

TextImageVideoAudioPDF

Compare

GLM 5.3 Prime price history

2 price records since 9/25/2026

GLM 5.3 Prime cost calculator

Input20M tokens

Output5M tokens

$100/month

Standard pricing

Overview

What is GLM 5.3 Prime?

GLM 5.3 Prime is a text & reasoning model from Z.ai. 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... Its 1M context window and $2.80 input price make it a candidate for quality-focused production applications.

Content workflowsClassification

Rates

GLM 5.3 Prime pricing

Pricing is based on token usage. Provider-specific caching, batch, regional, and tool charges may affect the final cost.

Input · Standard

$2.80

Per 1M tokens

Cached input · Standard

$0.56

Per 1M tokens

Capabilities

GLM 5.3 Prime Tools

Tools available when using GLM 5.3 Prime through supported provider APIs.

Function calling

Supported

Structured outputs

Not supported

JSON mode

Supported

Reasoning

Supported

Built-in web search

Not supported

Log probabilities

Supported

Deterministic seed

Supported

Parallel tool calls

Not supported

Prompt caching

Supported

Strengths and limitations

Strengths

Priced at $2.80 input and $8.80 output per million tokens.
1M context supports large documents, repositories and extended conversations.
Supports text & reasoning workloads in one model.

Limitations

Generated tokens cost 3× more than input tokens, which matters for verbose responses.
Large context capacity does not guarantee consistent retrieval across the entire prompt.
Arena Elo and MMLU-Pro are directional; test accuracy, latency and reliability on your own workload before committing.

Arena Elo, MMLU-Pro and pricing figures are illustrative; validate current vendor terms before purchase.

Same provider