Z.ai: GLM 4.5
Analysis Summary
Z.ai GLM 4.5 is a text model designed for general workflows with a 131K context window, tool use, and function calling. Its measured capability is sufficient for structured reasoning and practical automation, while its integration features support applications that need external actions. The model has no listed vision or file modality, keeping its role focused on text and tools.
It can support routine analysis, structured content, SEO operations, and supervised agentic tasks. The intelligence level is below flagship standards, so it should not be the default for difficult research, complex coding, or autonomous workflows with many failure points. Client-facing writing also benefits from review when precision and tone are critical.
Pricing is moderate rather than disruptive. Use GLM 4.5 as a secondary tool-enabled model for defined workflows, especially when context capacity and function calling matter more than frontier reasoning.
Assessed August 9, 2026
Editorial notes
GLM 4.5 provides a 131K context window, tool use, and function calling at moderate pricing, with useful general capability. Its measured reasoning level remains below the models suited to complex autonomous or premium editorial work.
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DFO Verdict
GLM 4.5 provides a 131K context window, tool use, and function calling at moderate pricing, with useful general capability. Its measured reasoning level remains below the models suited to complex autonomous or premium editorial work.
How Z.ai: GLM 4.5 compares
Z.ai: GLM 4.5 ranks #177 of 425 AI models we track for overall intelligence. Its 131K-token context window is larger than 50% of the models we list. At $0.60 per million input tokens it is cheaper than 35% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on value. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.60 | $0.000600 |
| Output | $2.20 | $0.002200 |
What would Z.ai: GLM 4.5 cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 704 models → Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save Z.ai: GLM 4.5 for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout Z.ai: GLM 4.5
GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly..
Frequently asked questions about Z.ai: GLM 4.5
How much does Z.ai: GLM 4.5 cost?
Z.ai: GLM 4.5 costs $0.60 per million input tokens and $2.20 per million output tokens.
What is the context window of Z.ai: GLM 4.5?
Z.ai: GLM 4.5 has a context window of 131,072 tokens (131K).
What can Z.ai: GLM 4.5 do?
Z.ai: GLM 4.5 supports tool use and function calling.
Who created Z.ai: GLM 4.5?
Z.ai: GLM 4.5 is developed by Z.ai and was released on July 25, 2025.