Z.ai: GLM 4.5
Analysis Summary
GLM 4.5 is a Z.ai model with a 131K context window, tool use, and function calling. Those features support structured API workflows, document handling, and assistants that need to trigger external actions. The text-only modality keeps it focused on language and tool-driven tasks rather than visual analysis.
Input pricing is 0.6 per million tokens and output pricing is 2.2, so the model is better suited to targeted automation than large-scale content production. The supplied intelligence result is limited, and there are no detailed coding, instruction-following, or long-context measurements to establish production reliability. Consider it for controlled workflow experiments and structured internal tasks, with stronger validation before using it for autonomous client operations.
Assessed September 7, 2026
Editorial notes
GLM 4.5 provides a 131K context window and tool and function calling for structured automation, but its supplied intelligence results are limited and its output pricing is high for routine volume work.
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DFO Verdict
GLM 4.5 provides a 131K context window and tool and function calling for structured automation, but its supplied intelligence results are limited and its output pricing is high for routine volume work.
How Z.ai: GLM 4.5 compares
Z.ai: GLM 4.5 ranks #197 of 438 AI models we track for overall intelligence. Its 131K-token context window is larger than 47% 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 779 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.