# Zai GLM 5.3 Flash API Pricing

As of October 25, 2026, Zai GLM 5.3 Flash costs $0.15 per 1M input tokens and $0.50 per 1M output tokens on Mistral AI, with cache reads at $0.03 per 1M tokens. It has a 1,048,576-token context window and returns up to 131,072 tokens per response.

- Page: https://models.litellm.ai/models/zai-glm-5-3-flash
- LiteLLM model name: `mistral/zai-glm-5-3-flash`
- Context window: 1,048,576 tokens
- Max output: 131,072 tokens
- Added to LiteLLM: October 25, 2026
- Prices updated: October 25, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Mistral AI | `mistral/zai-glm-5-3-flash` | $0.15 | $0.50 | $0.03 | – | – | 1M |

## Cost examples

1,000 requests with 2,000 input and 500 output tokens each:

- Mistral AI: $0.55

100 long-document requests with 100,000 input and 2,000 output tokens each:

- Mistral AI: $1.60

## Features

Supported: Function calling, Structured output, Image input, Reasoning, Prompt caching.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="mistral/zai-glm-5-3-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## Cost calculator

10,000 requests a day with 1,000 input and 500 output tokens each, at Mistral AI's price: $0.0004 per request, $4.00 per day, $120 per month (30 days). Try other numbers at https://models.litellm.ai/calculator?model=zai-glm-5-3-flash

## FAQ

### How much does Zai GLM 5.3 Flash cost?

Zai GLM 5.3 Flash costs $0.15 per 1M input tokens and $0.50 per 1M output tokens on Mistral AI, with cache reads at $0.03 per 1M tokens.

### What is the context window of Zai GLM 5.3 Flash?

Zai GLM 5.3 Flash has a 1,048,576-token context window and returns up to 131,072 tokens per response.

### Which providers offer Zai GLM 5.3 Flash?

Zai GLM 5.3 Flash is available from Mistral AI through LiteLLM, using the model name mistral/zai-glm-5-3-flash.

### How do I call Zai GLM 5.3 Flash with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="mistral/zai-glm-5-3-flash", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does Zai GLM 5.3 Flash support?

Zai GLM 5.3 Flash supports function calling, structured output, image input, reasoning and prompt caching.

### When did LiteLLM add Zai GLM 5.3 Flash?

Zai GLM 5.3 Flash was added to LiteLLM's model price file on October 25, 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json. Maintainers update it from each provider's published pricing, and this page is usually rebuilt within 20 minutes of every change.