GLM-5.3-FlashX

GLM-5.3-FlashX for faster multimodal and agent workloads

Published
scheduleReleased:September 18, 2026

GLM-5.3-FlashX accepts text, image, video and file input with a 1M-token context window, 128K maximum output and an official rated speed of up to 200 tokens/s.

starsCapabilities

visibilityVision understandingcodeFunction callingdata_objectStructured output

paymentsContext and pricing

Context limit1,000,000
Max output131,072
Input price$0.37/ 1M tokens
Output price$1.25/ 1M tokens
Cached input price$0.075/ 1M tokens

descriptionOverview

Overview

GLM-5.3-FlashX is the faster GLM-5.3-Flash variant, using model ID glm-5.3-flashx. Official documentation lists a 1,048,576-token context window, 131,072-token maximum output, and text, image, video and file input. Zhipu rates generation speed at up to 200 tokens/s.

Capabilities and parameters

The model supports native visual understanding, streaming, function calling, context caching and structured output. thinking.type only supports enabled. Zhipu recommends temperature: 1, top_p: 0.95 and reasoning_effort: max; streaming tool calls should also enable tool_stream.

API pricing

Zhipu lists API pricing at CNY 2 input, CNY 7 output and CNY 0.57 cache read per million tokens. Cache storage is temporarily free. Actual billing follows the pricing in effect when the request runs.

lightbulbUse cases

  • Low-latency multimodal chat
  • Visual coding and UI recreation
  • Long-context agents and tool use
  • Document, finance and Office workflows

thumb_upStrengths

  • Official rated speed up to 200 tokens/s
  • 1M context and 128K maximum output
  • Native text, image, video and file input
  • Tool calling, caching and structured output

infoLimitations

  • Reasoning cannot be disabled
  • Actual speed depends on request size and service load
  • FlashX is not currently available in Coding Plan
  • Pricing and capabilities may change

linkReferences

This content is compiled from official documentation and public sources. Always refer to official documentation for final details