DeepSeek · 1.0M context

DeepSeek V4 Flash 0423 API

Chat with DeepSeek V4 Flash 0423

Use DeepSeek V4 Flash 0423 in the Synaps chat or through one OpenAI-compatible API key. Pay per message from a balance you top up with ETH or USDC. No subscription, no card.

No training
Input / 1M tokens$0.109list $0.091
Output / 1M tokens$0.218list $0.182
Typical message≈ $0.00031.5K in · 500 out
Context window1.0Mtokens

Prices include the 20% Synaps fee and update automatically. “List” is what the provider charges.

Call DeepSeek V4 Flash 0423 from code

Synaps speaks the OpenAI Chat Completions format. Point any OpenAI SDK at Synaps and set model to deepseek/deepseek-v4-flash.

cURL
curl https://www.synaps.chat/api/v1/chat/completions \
  -H "Authorization: Bearer $SYNAPS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-v4-flash",
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'
Python
from openai import OpenAI

client = OpenAI(base_url="https://www.synaps.chat/api/v1", api_key="syn_...")

reply = client.chat.completions.create(
    model="deepseek/deepseek-v4-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(reply.choices[0].message.content)

Quickstart · API reference · Create an API key

Privacy

Synaps routes this model only to providers that don't store or train on your prompts.

Questions

How much does DeepSeek V4 Flash 0423 cost on Synaps?

$0.109 per million input tokens and $0.218 per million output tokens, including the 20% Synaps fee. A typical chat message costs about $0.0003. You only pay for what you use.

Can I pay for DeepSeek V4 Flash 0423 with crypto?

Yes. Top up your Synaps balance with ETH on Robinhood Chain or Base, or USDC on Base, from $1. Each message is deducted from that balance. There is no subscription or card.

Is there a DeepSeek V4 Flash 0423 API?

Yes. Create an API key on Synaps and call deepseek/deepseek-v4-flash through the OpenAI-compatible endpoint https://www.synaps.chat/api/v1/chat/completions. Any OpenAI SDK works by changing the base URL.

What can DeepSeek V4 Flash 0423 do?

It accepts text and produces text, with a context window of 1.0M tokens.

More from DeepSeek

← All models

DeepSeek V4 Flash 0423 API — pay per message with crypto · Synaps