DeepSeek: DeepSeek V4 Flash (free) API
About
Build advanced reasoning agents with DeepSeek: DeepSeek V4 Flash (free), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support. Access DeepSeek: DeepSeek V4 Flash (free) via the Kilo Gateway API with up to 384K output tokens.
Capabilities
Input Modalities
text
Output Modalities
text
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Limits
Context Window
1.0M
Tokens
Input Limit
1.0M
Tokens
Max Output
384K
Tokens
Pricing
Standard (per 1M tokens)
Input
Free
Output
Free
Frequently Asked Questions
DeepSeek: DeepSeek V4 Flash (free) by Kilo Gateway costs Free per 1M input tokens and Free per 1M output tokens.
Model Details
ID
deepseek/deepseek-v4-flash:free
Provider
Kilo GatewayFamily
Release Date
Apr 24, 2026
Knowledge Cutoff
N/A
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
KILO_API_KEY
API Base URL
https://api.kilo.ai/api/gateway