# Alibaba Qwen3.8 Max API

> Qwen3.8 Max is Alibaba's flagship Qwen3.8 model, a 2.4-trillion-parameter Mixture-of-Experts reasoning model with native vision understanding, released in August 2026. Alibaba positions it for long-horizon coding and office work, from multi-day autonomous development to professional legal, financial and design tasks, with vision used across planning, execution and verification. Model Studio recommends it when the strongest reasoning in the Qwen lineup is needed.

Source: https://www.sandbase.ai/models/alibaba/qwen3.8-max
API reference: https://www.sandbase.ai/models/alibaba/qwen3.8-max/docs

## Facts

- Provider: Alibaba
- Type: Language model
- Model ID: `alibaba/qwen3.8-max`
- Price: $1.80 per 1M input tokens, $5.40 per 1M output tokens (10% off list price)
- Context window: 1M tokens, up to 131.1K output tokens
- Capabilities: chat, vision, reasoning, structured output, function calling
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Chat Completions API: `POST https://api.sandbase.ai/v1/chat/completions`

```bash
curl -X POST https://api.sandbase.ai/v1/chat/completions \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "alibaba/qwen3.8-max",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}'
```

## FAQ

### How do I call Alibaba Qwen3.8 Max through SandBase?

Create a SandBase API key, then send requests with the model ID "alibaba/qwen3.8-max" to Chat Completions API (/v1/chat/completions) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### How much does Alibaba Qwen3.8 Max cost?

$1.80 per 1M input tokens and $5.40 per 1M output tokens with the current 10% discount (list price $2 / $6), billed per request from your SandBase balance.

### What is the context window of Alibaba Qwen3.8 Max?

1M tokens of context, with up to 131.1K output tokens per response.

### How does Alibaba Qwen3.8 Max score on benchmarks?

Alibaba Qwen3.8 Max scores 45.4 on the Artificial Analysis Intelligence Index (v4.3), ranking #12 of 83 models on SandBase; Coding Index 76.2, Agentic Index 56.0. Source: Artificial Analysis, measured as Qwen3.8 Max (0902).

### Which features does Alibaba Qwen3.8 Max support?

Alibaba Qwen3.8 Max supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

### Do I need a separate Alibaba account?

No. One SandBase API key and balance gives you access to Alibaba Qwen3.8 Max and the other models in the catalog; you do not need to sign up with Alibaba separately.