glm-5.3-flash

glm-5.3-flash

Zhipu’s new-generation lightweight flagship large model, designed for high-concurrency, low-latency, and scalable application scenarios.
2026-08-26
LLM
Model capability: thinkingModel capability: function_call
Cache Read:
$0.015/1M tokens
Input:
$0.075/1M tokens
Output:
$0.25/1M tokens
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API Overview

GLM-5.3-Flash is a lightweight flagship large language model developed by Zhipu AI, designed for high-concurrency, low-latency, and scalable application scenarios. As the high-performance Flash version of the GLM-5.3 generation, this model inherits the flagship edition’s robust capabilities in code understanding, multi-step agent planning, and high-density logical reasoning. Through fine-grained distillation and optimization of inference operators, it achieves several times the generation throughput of the standard version while maintaining extremely low first-token latency. The model natively supports deep thinking and long-context processing, making it the industrial-grade preferred foundation for enterprises deploying AI IDE assistants, real-time customer service systems, high-frequency automation pipelines, and lightweight agents in bulk.

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Core Capabilities

Ultra-fast Response and High-Throughput Concurrency: Specifically designed for real-time interactions and large-scale tasks, this model significantly improves first-token latency and token-generation speed, effectively reducing user wait times and system lags in high-concurrency scenarios.

High Intelligence Combined with Long-Term Agent Delivery: Even within the lightweight Flash architecture, it retains exceptional precision in automatic code patching, multi-file analysis, and tool invocation, perfectly balancing speed and generation quality.

Adaptive Deep-Thinking Mode: It supports enabling chain-of-thought reasoning, allowing it to automatically perform careful reasoning and self-correction when dealing with complex mathematical derivations or multi-step logical breakdowns, dramatically improving the success rate of single-attempt completions.

Ultra-Cost-Effective and Long-Context Caching: Coupled with a context-caching mechanism, it reduces the cost of frequent follow-up queries and fixed-prompt calls to virtually zero, helping enterprises significantly cut inference expenses.

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API Analytics

API Reference (1)

API DescriptionAPI EndpointRequest MethodStabilityParameter Description
Chat (Zhipu GLM Multimodal)
POST
Stable
View Details

API Pricing

$
ModelDescriptionContextOfficial Price302.AI PriceOfficial Price Gap

glm-5.3-flash

-
1000000

Input$0.075 / 1M tokens
Output$0.25 / 1M tokens

Cache Read$0.015 / 1M tokens
Input$0.075 / 1M tokens
Output$0.25 / 1M tokens

Original Price