# DeepSeek: deepseek-v4-flash-vision-exp — API on ChinaAPI

> DeepSeek V4 Flash Vision (experimental) adds image understanding to the V4 Flash tier. It accepts mixed text and image input, converts images into input tokens with no separate image charge, and supports thinking and non-thinking modes, tool calling, and JSON output with a 1M context window and up to 384K output.

- Canonical page: https://chinaapi.ai/models/deepseek-v4-flash-vision-exp/
- Model ID: `deepseek-v4-flash-vision-exp`
- Context window: 1M
- Modalities: Text, image input
- Pricing: $0.44/M input, $1.32/M output tokens (USD)
- Endpoint: OpenAI-compatible `POST https://api.chinaapi.ai/v1/chat/completions`
- Price note: DeepSeek charges peak rates on Beijing-time weekdays from 09:00–12:00 and 14:00–18:00; all other times are off-peak at exactly half price, including cache reads. Images are converted into input tokens and billed together with text, with no separate image charge. ChinaAPI passes every tier through at cost, and all tiers are listed below.
- Pricing basis: Token-model rates are synchronized from the gateway and may follow providers' official China list prices where configured. Live pricing is authoritative.
- Access: no mainland-China account or phone number required; $2 free trial credit
- Sign up: https://dash.chinaapi.ai/register?lang=en&utm_source=chinaapi&utm_medium=model-md&utm_campaign=deepseek-v4-flash-vision-exp

## Quickstart

```
curl -X POST https://api.chinaapi.ai/v1/chat/completions \
  -H "Authorization: Bearer $CHINAAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4-flash-vision-exp",
    "messages": [
      {"role": "user", "content": "Summarize the main tradeoffs for this API workload."}
    ]
  }'

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["CHINAAPI_API_KEY"],
    base_url="https://api.chinaapi.ai/v1",
)

response = client.chat.completions.create(
    model="deepseek-v4-flash-vision-exp",
    messages=[
        {"role": "user", "content": "Summarize the main tradeoffs for this API workload."}
    ],
)
print(response.choices[0].message.content)
```

## FAQ

**How do I use deepseek-v4-flash-vision-exp?**
Use deepseek-v4-flash-vision-exp through ChinaAPI with an API key and the OpenAI-compatible endpoint shown on this page.

**How much does deepseek-v4-flash-vision-exp cost?**
deepseek-v4-flash-vision-exp is $0.44/M input, $1.32/M output tokens, paid in USD. The live pricing page is authoritative. Token-model rates are synchronized from the gateway and may follow providers' official China list prices where configured. Live pricing is authoritative.

**Does deepseek-v4-flash-vision-exp need a Chinese account?**
No. ChinaAPI provides access without a mainland-China account or phone number and includes a $2 free trial. Check live pricing for the displayed USD rate.

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Markdown twin of https://chinaapi.ai/models/deepseek-v4-flash-vision-exp/ — generated by scripts/gen_model_pages.py. Full catalog: https://chinaapi.ai/llms-full.txt