Z.ai

GLM-5.3

GLM-5.3 is Z.ai's frontier text model for long-horizon coding and reasoning with a 1M-token context window. Built by Z.ai and served through Together AI on magicdoor.ai.

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Use this model through magicdoor.ai without a separate Z.ai account. magicdoor.ai is $6/month + usage.

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Try GLM-5.3 without stacking subscriptions

magicdoor.ai includes all 13 chat models in one workspace for $6/month, with $1 in credits included and usage-based pricing after that.

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Capabilities

✗

Vision

✓

Web Search

✓

Image Generation

✗

Canvas

✓

Reasoning

✗

Code Interpreter

✗

PDF Support

Pricing on magicdoor.ai

$6/mo

+ usage-based pricing

  • • $1.40 per 1M input tokens
  • • $4.40 per 1M output tokens
  • • $1 in credits included monthly
  • • No separate Z.ai subscription needed
  • • Access all 13 chat models in one workspace

What GLM-5.3 Is Best For

💻

Long-Horizon Coding

Work through repository-scale engineering tasks and extended implementation plans.

🧠

Deep Reasoning

Use reasoning for complex analysis, technical decisions, and multi-step work.

📚

Long Context

Keep large text inputs in a context window of up to 1,048,575 tokens.

🧰

Structured Workflows

Use function calling and structured outputs for tool-driven workflows.

How It Works

Start using GLM-5.3 in under a minute

1

Sign up for magicdoor.ai ($6/mo)

2

Select GLM-5.3 from the model picker

3

Start chatting — pay only for what you use

Keep Comparing Before You Subscribe

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Model cost guide

Compare token pricing across supported chat models.

Frequently Asked Questions

How much does GLM-5.3 cost on magicdoor.ai?

magicdoor.ai charges $6/month for platform access (includes $1 in credits), then usage-based pricing: $1.40 per 1M input tokens, $0.26 per 1M cached input tokens, and $4.40 per 1M output tokens.

What is GLM-5.3 best for?

GLM-5.3 is designed for long-horizon coding, complex reasoning, and tool-driven text workflows.

Does GLM-5.3 accept images?

No. GLM-5.3 accepts text input. Choose GLM-5.3 Flash when you need image input.

What happens to older GLM chats?

Saved GLM-5.2 and GLM-5.1 chats and links resolve to GLM-5.3 automatically.

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