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DeepSeek

DeepSeek API

DeepSeek V4 — frontier reasoning at a fraction of Western frontier token prices.

At a glance

From
$0.168 / 1M tokens

Models in this family

ModelFromModesOpen
DeepSeek V4 FlashFast, very low cost DeepSeek tier for high-volume classification, extraction and chat.$0.168/ 1M tokens—OpenDocs
DeepSeek V4 ProDeepSeek's frontier reasoning model. Strong at maths, coding and long analytical chains at a fraction of Western frontier pricing.$0.522/ 1M tokens—OpenDocs

Pricing

ModelOptionPrice
DeepSeek V4 Flashinput$0.168/ 1M tokens
DeepSeek V4 Flashoutput$0.336/ 1M tokens
DeepSeek V4 Proinput$0.522/ 1M tokens
DeepSeek V4 Prooutput$1.04/ 1M tokens

Which one to pick

  • DeepSeek V4 Flash

    High-volume classification, extraction and chat where per-token cost dominates the decision.

  • DeepSeek V4 Pro

    Maths, coding and long analytical chains — frontier reasoning without frontier pricing.

Strengths

  • The cheapest frontier-class reasoning in the catalog on a per-token basis.
  • Flash has the lowest output price of any text model in the catalog.
  • Output is only two times input on both tiers, the narrowest ratio in the catalog and well below the GPT or Claude lines.
  • OpenAI-protocol compatible, so it drops into existing code.

Limitations

  • Only two tiers, with no mid-range option between them.
  • Text-only — no image input in this family.

Frequently asked questions

How much does the DeepSeek API cost?

API Stock bills per use from one prepaid balance, with no subscription. Current prices: DeepSeek V4 Flash — $0.168 per 1M input tokens and $0.336 per 1M output tokens; DeepSeek V4 Pro — $0.522 per 1M input tokens and $1.04 per 1M output tokens.

Which DeepSeek model is the cheapest?

DeepSeek V4 Flash is the cheapest at $0.168 per 1M input tokens. The most expensive tier, DeepSeek V4 Pro, costs $0.522 per 1M input tokens.

Can I use the DeepSeek API with the OpenAI or Anthropic SDK?

Yes. DeepSeek models accept the OpenAI request format: set the SDK's base URL to https://api.api-stock.com/api/v1 and use your API Stock API key. Switching between models only changes the model id.

How do I get an API key for DeepSeek?

Create an account and API key on API Stock, then fund your balance. The same key works with DeepSeek and other catalog models.

The vendor's own description of this line: DeepSeek — API docs

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