DeepSeek V4 Pro API
DeepSeek’s strong model for code and reasoning at a very low price.
Good for
The best-value models for code and reasoning. Flash for bulk work, V4 Pro for the hard parts.
| Model ID | deepseek-v4-pro |
| Vendor | DeepSeek |
| Family | DeepSeek |
| Balance rate | ×0.66 / ×1.98 |
| Cache read | $0.0044 per 1M tokens |
Both API formats
The model answers in the Anthropic Messages format and in the OpenAI Chat Completions format. Only the address and the key change.
curl https://api.klinch.cloud/v1/messages \
-H "x-api-key: kl_live_…" \
-H "content-type: application/json" \
-d '{"model": "deepseek-v4-pro", "max_tokens": 1024,
"messages": [{"role": "user", "content": "Hello"}]}'from openai import OpenAI
client = OpenAI(base_url="https://api.klinch.cloud/v1", api_key="kl_live_…")
r = client.chat.completions.create(
model="deepseek-v4-pro",
messages=[{"role": "user", "content": "Hello"}],
)
print(r.choices[0].message.content)FAQ
How much does DeepSeek V4 Pro cost on KLINCH?
$0.132 per 1M input tokens and $0.396 per 1M output tokens. DeepSeek’s list price is $1.32 and $3.96. The balance is charged ×0.66 per input and ×1.98 per output token.
How do I call DeepSeek V4 Pro through the API?
Use the KLINCH API address, your kl_live_… key and the model deepseek-v4-pro. The Anthropic SDK, the OpenAI SDK, Claude Code, Cursor and any client with a custom base URL work.
Is there a subscription?
No. You buy a token pack once and tokens are charged as you use them.
Is this the official DeepSeek API?
No. KLINCH is not affiliated with DeepSeek. We provide access to the model through our own gateway that speaks the Anthropic and OpenAI APIs.
One key, one balance, every top model
Claude, GPT, Gemini, DeepSeek and Grok at a tenth of the official price. No subscription, pay as you go.