GLM 5.3 Flash (batch)

Name: Z.ai: GLM 5.3 Flash (batch)
Brand: z-ai
SKU: z-ai/glm-5.3-flash:batch
Price: 0.055 USD
Availability: InStock

z-ai/glm-5.3-flash:batch

GLM-5.3-Flash is a native multimodal model from Z.ai.

$0.055 in · $0.198 out per 1M tokens1M contextAug 26, 2026

about 0.01¢ a message

A typical message: about 500 tokens you send and 500 it writes.

Chat with GLM 5.3 Flash (batch)

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Also:GLM 5.3 Flash

Spec sheet

Published facts from the catalog, billed prices and what we measured here. Anything not measured says so.

Price, billed here

Input, per 1M tokens: $0.055provider $0.05
Output, per 1M tokens: $0.198provider $0.18
Cached input, per 1M: $0.011provider $0.01
Margin: +10%

Context and formats

Context window: 1,048,576 tokens
Longest answer: 131,072 tokens
Reads: text, images, and video
Makes: text
First listed: 2026-08-26

Measured here, last 7 days

First token, median: not measured
Answered without error: not measured

Tools and JSON

Tool calling: declaredthe provider's claim, not yet measured here
JSON output: declaredthe provider's claim, not yet measured here

Price and latency history as JSON: GET /api/planet/history?id=z-ai/glm-5.3-flash:batch.

About

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while...

In Z.ai's words.

Try it here

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Measured here

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Call it

Use one OpenAI compatible endpoint, this model's id and an am_live_ key from the dashboard. You can also try it in chat first with no key.

curl https://useantimatter.com/v1/chat/completions \
  -H "Authorization: Bearer $ANTIMATTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "z-ai/glm-5.3-flash:batch", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

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GLM 5.3 Flash (batch) price on Antimatter

<a href="https://useantimatter.com/planet/z-ai/glm-5.3-flash%3Abatch"><img src="https://useantimatter.com/api/badge/price?id=z-ai%2Fglm-5.3-flash%3Abatch" alt="GLM 5.3 Flash (batch) price on Antimatter" height="28"></a>

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