GLM 5.3 Prime
$2.80 per 1M input tokens and $8.80 per 1M output tokens · 1M context · tools, reasoning, JSON.
Prices checked Oct 21, 2026 · tracked by LLM Cost Index since Oct 21, 2026
What GLM 5.3 Prime costs per month
Estimated monthly bill for typical workloads, using the cached-input price for repeated context. Try your own numbers in the cost calculator.
| Workload | Per month |
|---|---|
| Customer chatbot 1,000 conversations a day, 8 turns each | $1,263 |
| Document Q&A (RAG) 500 questions a day over retrieved documents | $298 |
| Coding / tool-using agent 200 tasks a day, long tool-heavy contexts | $614 |
| Content generation 30 long articles a day | $27.36 |
| Classification / extraction 100,000 short items a day | $2,916 |
Price history
We started tracking GLM 5.3 Prime on Oct 21, 2026; the chart appears as soon as there is a second data point. See all recent price changes.
Cheaper alternatives to GLM 5.3 Prime
Models with the same tool calling, structured output for at least 20% less (3:1 input/output mix), most capable first.
| Model | Input / 1M | Output / 1M | Context | Capabilities |
|---|---|---|---|---|
| Muse Spark 1.3 Meta | $1.25 | $4.25 | 1.05M | visiontoolsreasoningJSON |
| Grok 4.7 xAI | $2.00 | $6.00 | 500K | visiontoolsreasoningJSON |
| MiMo-V2.6-Pro Xiaomi | $0.435 | $0.87 | 1.05M | visionaudiotoolsreasoningJSONopen weights |
| $2.00 | $6.00 | 1M | visiontoolsreasoningJSON | |
| GLM 5.3 Z.ai | $0.079 | $1.40 | 1.05M | toolsreasoningJSONopen weights |
How to pay less for GLM 5.3 Prime
For a customer chatbot (1,000 conversations a day, 8 turns each) that costs $1,747 a month at list price without caching:
| Option | Per month | You save |
|---|---|---|
| Move to Muse Spark 1.3 (similar capabilities) | $569 | $1,178 (67%) |
| Use prompt caching (60% of input cached) | $1,263 | $484 (28%) |
Other workloads: cut-your-bill tool for GLM 5.3 Prime.
Specifications
| Model ID | z-ai/glm-5.3-prime |
| Input | text |
| Output | text |
| Tool calling | Yes |
| Structured output | Yes |
| Reasoning mode | Yes |
| Open weights | No |
| Released | Sep 23, 2026 |
FAQ
- How much does GLM 5.3 Prime cost?
- $2.80 per million input tokens and $8.80 per million output tokens; cached input costs $0.56 per million. Prices as of Oct 21, 2026.
- What is the context window of GLM 5.3 Prime?
- 1M tokens, with up to 131K output tokens per response.
- Does GLM 5.3 Prime support images, tools and structured output?
- Images as input: no. Tool calling: yes. Structured (JSON) output: yes. Reasoning mode: yes.
- What are cheaper alternatives to GLM 5.3 Prime?
- Models with the same key capabilities for at least 20% less include Muse Spark 1.3 ($1.25 / $4.25), Grok 4.7 ($2.00 / $6.00), MiMo-V2.6-Pro ($0.435 / $0.87).
More from Z.ai: all Z.ai models · how we collect prices