DeepSeek V3
Access DeepSeek V3 through one API key. Frontier-level coding at a fraction of the cost.
DeepSeek's flagship chat model. Excellent coding and reasoning at a fraction of the cost of frontier models.
No credit card required. Takes 30 seconds.
2,400+
Developers
1.2M+
API calls served
100+
Endpoints
$0.01
Per call
Yep, that's it.
Try it live
Send a message and see DeepSeek V3 respond in real time.
Maximum tokens in the response.
Real-time tokens
Context Window
128K tokens
Max Output
8K tokens
Input Price
$0.38 / 1M tokens
Output Price
$1.54 / 1M tokens
Strengths
At $0.38 per 1M input and $1.54 per 1M output tokens, it delivers frontier-style coding and reasoning at a small fraction of flagship prices.
DeepSeek V3 is tuned heavily for code generation and debugging across languages, returning up to 8,192 output tokens per call.
Handles multi-step reasoning and analysis well for its price tier, making it a capable general-purpose chat model.
Reads up to 128,000 tokens per request, enough for large files, long threads, or multi-document prompts.
Quick start
Copy this snippet and start making calls with DeepSeek V3.
const res = await fetch('https://api.yepapi.com/v1/ai/chat', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"model": "deepseek/deepseek-chat-v3",
"messages": [
{
"role": "user",
"content": "Explain API gateways in 2 sentences."
}
],
"maxTokens": 256
}),
});
const { data } = await res.json();
console.log(data.message.content);Why use DeepSeek V3 through YepAPI?
DeepSeek V3 API — pricing, context window & access
DeepSeek V3 is DeepSeek's flagship chat model, known for delivering strong coding and reasoning at a fraction of frontier-model cost. It offers a 128K-token context window and up to 8,192 output tokens per response.
With YepAPI you reach DeepSeek V3 through one OpenAI-compatible key — the same key that also covers DeepSeek R1, GPT-4o, Claude, Gemini, and the SEO, SERP and scraping APIs.
What is DeepSeek V3?
DeepSeek V3 is DeepSeek's flagship general-purpose chat model. Its calling card is value: it delivers coding and reasoning quality close to frontier models at a small fraction of their price. With a 128K-token context window it handles large files and long conversations, and it's tuned especially well for software tasks. It sits alongside the reasoning-specialized DeepSeek R1 in DeepSeek's lineup — where R1 thinks step by step on hard problems, V3 is the fast, cheap default for everyday coding and chat where cost efficiency is the priority.
Build with DeepSeek V3 via YepAPI
YepAPI serves DeepSeek V3 on the OpenAI-compatible /v1/ai/chat endpoint. Use the chat-completions format and the model string deepseek-chat-v3 — no special SDK required. Switching to DeepSeek R1 for harder reasoning, or to GPT-4o or Claude, is a one-string change, which makes it easy to use V3 as a cheap default and escalate only when needed. Your single key also covers search and scraping endpoints, so coding tools and data pipelines share one account.
DeepSeek V3 API pricing — $0.38 / 1M input, $1.54 / 1M output
DeepSeek V3 costs $0.38 per 1M input tokens and $1.54 per 1M output tokens through YepAPI. That ultra-low pricing is the whole point: you get strong coding and reasoning for roughly an order of magnitude less than flagship models. It makes V3 ideal for high-volume code generation, refactoring, and chat where cost would otherwise be the limiting factor. You pay only for tokens used, with no minimums or commitments.
DeepSeek V3 for affordable coding
DeepSeek V3 is a strong pick when you need a lot of coding throughput on a budget. It generates, refactors, and debugs across mainstream languages, and its 128K context holds large source files or multi-file prompts in one request. For teams running code assistants, batch refactors, or test generation at scale, V3's combination of solid coding quality and very low price lets you run far more requests for the same spend.
Try DeepSeek V3 free
Every new YepAPI account includes $5 in free credit, no card required. At DeepSeek V3's rates, that's enough to run a serious amount of real coding work before deciding. Sign up, copy your key, and start calling DeepSeek V3 right away.
Start generating in 30 seconds
$5 free credit on signup. No credit card required. Pay per call.
What developers say
“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”
“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Frequently asked questions
DeepSeek's flagship chat model. Excellent coding and reasoning at a fraction of the cost of frontier models.
Input tokens cost $0.38 per 1M tokens and output tokens cost $1.54 per 1M tokens through YepAPI. No monthly minimums — you only pay for what you use.
Sign up for a free API key, then send requests to the /v1/ai/chat endpoint.
DeepSeek V3 supports a 128K token context window with up to 8K output tokens per request.
Ready to use DeepSeek V3?
$5 free credit on signup. No credit card required. Pay per call.
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