# DeepSeek V4.1 Flash API on Boundless

> DeepSeek's open-weight model for fast coding agents that need image input and a long context, served on Boundless.

Page: https://boundless.network/models/deepseek-v4.1-flash

## Price per 1M tokens

| Input | Cached input | Output |
| --- | --- | --- |
| $0.20 | $0.01 | $1.00 |

## DeepSeek V4.1 Flash at a glance

DeepSeek V4.1 Flash is a 552B-parameter mixture-of-experts model for coding, reasoning, images and tool use. Its smaller KV cache can reduce costs on long-running requests that reuse context.

Source: https://inference.boundless.network/models/deepseek-v4.1-flash

- Developer: DeepSeek
- Context window: 1M tokens
- Input: Text, image
- Capabilities: Reasoning, tool use, vision

## DeepSeek V4.1 Flash API pricing by provider

| Provider | Input | Cached | Output | Context |
| --- | --- | --- | --- | --- |
| Boundless | $0.20 | $0.01 | $1.00 | 1M |
| DeepSeek (model creator) | $0.15 | $0.003 | $0.60 | 1M |
| DeepInfra | $0.14 | $0.004 | $0.42 | 1M |
| Fireworks | $0.22 | $0.007 | $0.66 | 1M |
| Baseten | $0.30 | $0.007 | $1.20 | 1M |
| Together | $0.30 | $0.006 | $1.20 | 1M |

Prices per 1M tokens. Source: OpenRouter (https://openrouter.ai/deepseek/deepseek-v4.1-flash)

## Switch with a base URL and a key

1. Get an API key: Sign up in the console and create a key. No sales call. https://inference.boundless.network/api-keys
2. Point your SDK at Boundless: Change the base URL and key. For Anthropic SDKs, drop the /v1 and set max_tokens.

```bash
curl https://api.inference.boundless.network/v1/chat/completions \
  -H "Authorization: Bearer $BOUNDLESS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4.1-flash",
    "messages": [{
      "content": "Say hello",
      "role": "user"
    }]
  }'
```

More examples: https://inference.boundless.network/docs/quickstart

## FAQ

### How much does DeepSeek V4.1 Flash cost on Boundless?

$0.20 per 1M input tokens, $0.01 per 1M cached input tokens and $1.00 per 1M output tokens, billed from prepaid credits. Every response includes exact token counts, so any charge can be checked against these prices.

### What is DeepSeek V4.1 Flash's context window on Boundless?

1M tokens, shared by the prompt and the reply. max_tokens can go up to that limit.

### Does DeepSeek V4.1 Flash support tool calling?

Yes. DeepSeek V4.1 Flash supports tool use and reasoning.

### Can I control how much DeepSeek V4.1 Flash reasons?

Yes. On chat completions, set reasoning_effort to none, low, medium or high, or leave it unset for the model's default. Size max_tokens for both the thinking and the reply.

### Can DeepSeek V4.1 Flash read images?

Yes. DeepSeek V4.1 Flash accepts text, image as input.

### What are the rate limits?

Each team has caps on tokens per minute, requests per minute and concurrent requests, shown on the usage page. Cached input doesn't count against them, and support can raise them for your team.

### Does Boundless store my prompts or outputs?

No. Boundless never stores prompts or outputs and never trains on them. It keeps only what billing needs: token counts, model, timestamp and cost.

### Can Boundless help me decide if DeepSeek V4.1 Flash fits my workload?

Yes. We test it against your current model on your own prompts, then tune and run it to your targets.

## Links

- Try it in the playground: https://inference.boundless.network/playground?model=deepseek-v4.1-flash
- Talk to an engineer: https://boundless.network/#get-access
- All models: https://boundless.network/models