free-ai-api-keys

deepseek/deepseek-v4-flash

DeepSeek: DeepSeek V4 Flash 0423

Context length
1049K
Input / 1M tokens
$0.05
Output / 1M tokens
$0.45
Released
2026-04-24
Modality
text->text

About DeepSeek: DeepSeek V4 Flash 0423

DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window. It is designed for fast inference and...

Call DeepSeek: DeepSeek V4 Flash 0423

Via OpenRouter: one base URL for every provider.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek/deepseek-v4-flash",
    "messages": [{"role": "user", "content": "Say hello"}]
  }'

Direct on DeepSeek:

curl https://api.deepseek.com/v1/chat/completions \
  -H "Authorization: Bearer $DEEPSEEK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "deepseek-v4-flash",
    "messages": [{"role": "user", "content": "Say hello"}]
  }'

DeepSeek keys

OpenRouter keys

OpenRouter keys work for deepseek/deepseek-v4-flash regardless of the upstream provider.