# DeepSeek V4.1 Flash

> DeepSeek V4.1 Flash: natively multimodal vision understanding with 1M context and 384K max output.

Agent resources: the index of everything machine-readable is https://www.ohmygpt.com/llms.txt; the integration skill (endpoints, auth, SDK and coding-tool setup) is https://www.ohmygpt.com/skill.md.

- Model ID: `deepseek/deepseek-v4.1-flash`
- Status: available
- Released: 2026-09-10
- Context: 1M tokens
- Max output: 384K tokens
- Input: text, image; output: text
- Capability score: 156 (as of 2026-11-02, see https://www.ohmygpt.com/rankings.md)

## Prices (USD)

| Item | Price | Unit |
| --- | --- | --- |
| Input | $0.073–$0.33 | per 1M tokens |
| Output | $0.292–$1.32 | per 1M tokens |
| Cache read | $0.00292–$0.0283 | per 1M tokens |

## Providers

Without a prefix each request goes to the best-priced healthy provider. To pin one, send the model as `<provider>:deepseek/deepseek-v4.1-flash`.

| Provider | Pinned model ID | Location | Input | Output | Trains on your data |
| --- | --- | --- | --- | --- | --- |
| ByteDance (Volcano Engine) | `bytedance:deepseek/deepseek-v4.1-flash` | China | $0.073–$0.146 | $0.292–$0.584 | no |
| Fireworks AI | `fireworks:deepseek/deepseek-v4.1-flash` | United States | $0.30 | $1.20 | no |
| Together AI | `together:deepseek/deepseek-v4.1-flash` | United States | $0.33 | $1.32 | no |
| Alibaba Cloud (Model Studio Intl) | `alibaba:deepseek/deepseek-v4.1-flash` | Global (HK/DE/JP) | $0.1415–$0.283 | $0.5655–$1.131 | no |

## Endpoints

| API | Request | model |
| --- | --- | --- |
| OpenAI Chat | POST https://api.ohmygpt.com/v1/chat/completions | `deepseek/deepseek-v4.1-flash` |
| OpenAI Responses | POST https://api.ohmygpt.com/v1/responses | `deepseek/deepseek-v4.1-flash` |
| Anthropic Messages | POST https://api.ohmygpt.com/v1/messages | `deepseek/deepseek-v4.1-flash` |
| Google Gemini | POST https://api.ohmygpt.com/v1/models/deepseek/deepseek-v4.1-flash:generateContent | `deepseek/deepseek-v4.1-flash` |

## Example

```bash
curl https://api.ohmygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $OHMYGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-v4.1-flash",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'
```

Web page: https://www.ohmygpt.com/models/deepseek/deepseek-v4.1-flash