DeepSeek API — V4.1 Flash & V4 Pro
Buy DeepSeek API access — V4.1 Flash and V4 Pro — at low, pay-as-you-go pricing. OpenAI-compatible.
Get a DeepSeek API key with no overseas account. APIMaster gives you DeepSeek V4.1 Flash, V4 Flash Vision, V4 Flash and V4 Pro at low pay-as-you-go pricing, billed per token. One OpenAI-compatible key also covers Claude and GPT — drop it into Cursor, Claude Code or any OpenAI SDK by changing the base URL.
Coding Plan
Käytä mallia DeepSeek V4 Pro 50% off alennuksella Coding Planissa
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Provider 29
Fingerprint history
Uptime
Every DeepSeek channel is fingerprint-checked before it's listed, so you get the real model.
DeepSeek API — Pricing
| Model | Our price | Official | Save |
|---|---|---|---|
| DeepSeek V4.1 Flash | $0.15/M | $0.15/M | — |
| DeepSeek V4 Flash Vision | $0.198/M | $0.22/M | 10% |
| Deepseek-v4-flash | $0.0792/M | $0.22/M | 64% |
| Deepseek-v4-pro | $0.2376/M | $0.66/M | 64% |
Capabilities
Strong reasoning
Competitive reasoning and math performance at a fraction of the cost.
Solid coding
Reliable code generation and completion for everyday development.
Cost-efficient
Among the cheapest capable models — ideal for high-volume workloads.
Use cases
Quick start
curl https://apimaster.ai/v1/chat/completions \
-H "Authorization: Bearer $APIMASTER_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "deepseek-flash",
"messages": [{ "role": "user", "content": "Hello" }]
}'DeepSeek API — Frequently Asked Questions
Which DeepSeek models are available?
Currently available: deepseek-flash, deepseek-v4-flash-vision-exp, deepseek-v4-flash, deepseek-v4-pro — all reachable through one key, billed per token.
Should I choose V4.1 Flash or V4 Pro?
Use V4.1 Flash for fast, cost-sensitive and high-volume tasks; choose V4 Pro for harder reasoning and quality-critical work.
How is it billed? Is there a minimum?
Billed per token (input + output) — see the price table above. Pay-as-you-go via Alipay, WeChat Pay, USDT and credit card, from as little as $1.
Is it OpenAI-compatible?
Yes. The endpoint is OpenAI-compatible, so it works with Cursor, Claude Code and any OpenAI SDK by changing the base URL and key.
Is my data safe?
Yes. Your API data is not stored or used for training, and all requests are sent over encrypted connections.
Other models
How to Get Started
Top Up Your Balance
Add credits via USDT or Epay. One balance works across all models and providers.
Top Up NowCreate Your API Key
Sign up and create an OpenAI-compatible API key in 3 seconds. No credit card required.
Create API KeyPlug Into Your Code or Agent
Swap in your APIMaster key and base URL — works with any OpenAI-compatible tool: Claude Code, Cursor, LangChain, LiteLLM, and more.
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