Z.ai: GLM 4.5
The GLM 4.5 is an AI model provided by z-ai, supporting text input modality with a context length of up to 131072 tokens and maximum completion tokens of 98304. It offers tools support, implying the ability to integrate with other software or frameworks, as well as reasoning capabilities. However, it does not provide structured output. At $0.6 per million input tokens and $2.2 per million output tokens, the GLM 4.5 is a model that may be worth shortlisting for organizations with a budget of at least $2.2 per million output tokens. Its benchmark standing, including a blended score of 46.1 across two independent benchmarks, suggests it may perform reasonably well in certain applications, although its performance in other areas remains untested due to limited coverage.
Benchmark results
Independent, published benchmarks. Blended score 45.3 across 2 benchmarks, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 21.1 |
| EQ-Bench | emotional understanding in dialogue | 67.4 |
- Model ID
- z-ai/glm-4.5
- Vendor
- z-ai
- Released
- July 2025
- Tokenizer
- Other
- Input Modalities
- text
- Output Modalities
- text
- Max Output
- 98,304 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.60/M input and $2.20/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.02 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.41 |
| A month of a busy support chatbot | 5M in / 2M out | $7.40 |
Similar models
Z.ai: GLM 4.5V
Z.ai: GLM 4.5 Air
Z.ai: GLM 5.3 Prime
Z.ai: GLM 5.2
Z.ai: GLM 5 Turbo
Z.ai: GLM 5.3
Quick answers
- How much does Z.ai: GLM 4.5 cost?
- $0.60 per million input tokens and $2.20 per million output tokens.
- What is Z.ai: GLM 4.5's context window?
- 131,072 tokens, roughly 196 pages of text in a single request.
- Does Z.ai: GLM 4.5 support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Z.ai: GLM 4.5 process images?
- No, it is text-only on the input side.