GLM-5.3-Flash

GLM-5.3-Flash: a glm-flash model from Volcengine, ~1M context

Published

scheduleReleased：August 26, 2026

GLM-5.3-Flash is a glm-flash model from Volcengine (~1M context, input around $0.11875/1M tokens). Suitable for assistants, content generation, knowledge Q&A and business automation

starsCapabilities

visibilityVision understandingcodeFunction callingdata_objectStructured output

paymentsContext and pricing

Context limit1,000,000

Max output131,072

Input price$0.11875/ 1M tokens

Output price$0.41563/ 1M tokens

Cached input price$0.03414/ 1M tokens

descriptionOverview

Overview

GLM-5.3-Flash is provided by Volcengine, model ID glm-5-3-flash-260828

Key specs

Context: 1M tokens
Max output: 131.1K tokens
Input price: $0.11875/1M
Output price: $0.41563/1M

Best for

Consider GLM-5.3-Flash when comparing context length, pricing, multimodal support and relay availability

lightbulbUse cases

Image and multimodal Q&A
Visual content analysis
Document and screenshot understanding

thumb_upStrengths

Very long context (~1M), good for long documents and codebases
Open weights, can be self-hosted
Supports image and multimodal input
High single-response output limit (~131.1K)

infoLimitations

Pricing and availability vary by upstream and relay; verify with official docs and tests

linkReferences

open_in_newhttps://www.volcengine.com/docs/82379/1099475