# GLM-5.3 FlashX API

> GLM-5.3 Flash at about 200 tokens a second. By Zhipu GLM, on Revana at $0.222 in / $0.75 out per 1M tokens.

- Model id: `glm-5.3-flashx`
- Kind: text (chat completions)
- Maker: Zhipu GLM
- Endpoint: `POST https://api.revana.si/v1/chat/completions` (OpenAI-compatible, streaming supported)
- Context window: 1M tokens
- Max output: 128K tokens
- Routes: 1
- Page: https://revana.si/llm/glm-5.3-flashx

## Price (USD per million tokens)

| Tokens | Price |
|---|---|
| Input | $0.222 |
| Cached input | $0.045 |
| Cache write (5 min) | $0.222 |
| Cache write (1 hour) | $0.444 |
| Output | $0.75 |

Reasoning tokens are billed as output. Each answer's `usage.cost_usd` is the amount taken from your balance; a request with no answer costs nothing.

## Request

```bash
curl https://api.revana.si/v1/chat/completions \
  -H "Authorization: Bearer $REVANA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"glm-5.3-flashx","messages":[{"role":"user","content":"Write a haiku about routing."}]}'
```

Or any OpenAI SDK with `base_url="https://api.revana.si/v1"`. Docs: https://revana.si/chat