DeepSeek V4 Flash API pricing

Call deepseek-v4-flash through RouterPlex's OpenAI-compatible API — vendor list price, 0% markup, billed per token from a prepaid balance. No subscription required.

Input / 1M tokens
$0.090
Output / 1M tokens
$0.18
Context window
1M
Provider
DeepSeek

Use it in one request.

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

Works with any OpenAI SDK or tool — just change the base URL. See the quickstart.

Common questions.

How much does the DeepSeek V4 Flash API cost?

Through RouterPlex, DeepSeek V4 Flash costs $0.090 per 1M input tokens and $0.18 per 1M output tokens — the vendor list price with 0% markup, billed per token from a prepaid balance you top up from $5.

What is the context window of DeepSeek V4 Flash?

DeepSeek V4 Flash supports a 1M token context window on RouterPlex.

Can I use DeepSeek V4 Flash with the OpenAI SDK?

Yes. RouterPlex serves DeepSeek V4 Flash through an OpenAI-compatible endpoint at https://api.routerplex.com/v1 — point any OpenAI SDK or tool at that base URL with your RouterPlex key and set model to "deepseek-v4-flash".

Try DeepSeek V4 Flash in minutes.

Top up from $5, or see all model pricing and plans.

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DeepSeek V4 Flash API Pricing · RouterPlex