# DeepSeek V4.1 Flash Economy API

> DeepSeek V4.1 Flash Economy is a lower-cost service tier of the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served through Volcengine Ark. It keeps the 1M-token context window, image input and reasoning of the standard model, and suits cost-sensitive batch and agent workloads that can accept higher latency.

Source: https://www.sandbase.ai/models/deepseek/deepseek-v4.1-flash-economy
API reference: https://www.sandbase.ai/models/deepseek/deepseek-v4.1-flash-economy#api

## Facts

- Provider: DeepSeek
- Type: Language model
- Model ID: `deepseek/deepseek-v4.1-flash-economy`
- Price: $0.30 per 1M input tokens, $1.20 per 1M output tokens
- Context window: 1M tokens, up to 384K 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": "deepseek/deepseek-v4.1-flash-economy",
  "messages": [
    {
      "role": "user",
      "content": "Hello"
    }
  ],
  "max_tokens": 2048
}'
```

## FAQ

### How do I call DeepSeek V4.1 Flash Economy through SandBase?

Create a SandBase API key, then send requests with the model ID "deepseek/deepseek-v4.1-flash-economy" 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 DeepSeek V4.1 Flash Economy cost?

$0.30 per 1M input tokens and $1.20 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

### What is the context window of DeepSeek V4.1 Flash Economy?

1M tokens of context, with up to 384K output tokens per response.

### Which features does DeepSeek V4.1 Flash Economy support?

DeepSeek V4.1 Flash Economy supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

### Do I need a separate DeepSeek account?

No. One SandBase API key and balance gives you access to DeepSeek V4.1 Flash Economy and the other models in the catalog; you do not need to sign up with DeepSeek separately.