DeepSeek-V4-Flash API
deepseek-v4-flashDeepSeek V4 Flash is the lightweight, cost-effective member of the DeepSeek V4 family, tuned for high throughput on general chat and basic text tasks. It has a 1M-token context window, tool calling, JSON output and streaming, and is served via the OpenAI-compatible /v1/chat/completions endpoint at ~10% below DeepSeek official pricing (peak $0.27 input / $1.08 output / $0.0054 cached per 1M tokens; off-peak is exactly half: $0.135 / $0.54 / $0.0027, by UTC hour).
API Documentation
View complete API reference with all parameters and examples.
Full API Documentation
View complete API reference with streaming, thinking, and more.
Pricing
Billing: Cost = (input_tokens * input_price + output_tokens * output_price) / 1,000,000
High Throughput
Lightweight V4 variant tuned for speed and cost on general tasks
1M Context
Million-token context window for long inputs
Tools & JSON
Function calling + JSON output, OpenAI-compatible
10% Under Official
Priced at DeepSeek official × 0.9, peak and off-peak alike
About DeepSeek V4 Flash
DeepSeek V4 Flash is a Large Language Model API provided by DeepSeek. DeepSeek V4 Flash is the lightweight, cost-effective member of the DeepSeek V4 family, tuned for high throughput on general chat and basic text tasks. It has a 1M-token context window, tool calling, JSON output and streaming, and is served via the OpenAI-compatible /v1/chat/completions endpoint at ~10% below DeepSeek official pricing (peak $0.27 input / $1.08 output / $0.0054 cached per 1M tokens; off-peak is exactly half: $0.135 / $0.54 / $0.0027, by UTC hour). Through APIMODELS platform, you can access this model via a unified API with transparent pay-as-you-go pricing. Current pricing: Input: $0.27, Output: $1.08 per 1M tokens.
Key Features
- High Throughput -- Lightweight V4 variant tuned for speed and cost on general tasks
- 1M Context -- Million-token context window for long inputs
- Tools & JSON -- Function calling + JSON output, OpenAI-compatible
- 10% Under Official -- Priced at DeepSeek official × 0.9, peak and off-peak alike
Use Cases
Chatbot & Customer Support
Build intelligent conversational systems to automatically answer user queries and improve service efficiency.
Content Generation
Automatically write articles, emails, ad copy, and other text content to boost productivity.
Code Assistant
Assist with code writing, debugging, and code review to accelerate software development.
Data Analysis
Understand and analyze unstructured data, extract key insights, and generate summary reports.
Why APIMODELS
- Unified API -- One API key to access all models, no need to register on multiple platforms
- Transparent Pricing -- Pay-as-you-go with per-call pricing published on every model page, ideal for indie developers and startups
- Instant Access -- Start using immediately after signup, supports Stripe and Alipay payments
- Full Documentation -- Detailed API docs with code examples in cURL, Python, and Node.js
Frequently Asked Questions
How much does DeepSeek V4 Flash cost?
DeepSeek V4 Flash is available through APIMODELS at: Input: $0.27, Output: $1.08 per 1M tokens. Billing is pay-as-you-go — you only pay for what you generate.
How to use DeepSeek V4 Flash API?
Sign up at APIMODELS, get your API key, and call our unified API endpoint. We provide detailed API documentation with code examples in cURL, Python, and Node.js.
What is the difference between APIMODELS and the official DeepSeek API?
APIMODELS offers the same DeepSeek V4 Flash model through our aggregation platform. We provide a unified API interface so you do not need separate accounts for each provider - one API key to access all models.
How does DeepSeek V4 Flash compare to other Large Language Model models?
On APIMODELS, DeepSeek V4 Flash runs alongside 60+ models on one API key and one balance, so choosing is about fit, not lock-in. It supports High Throughput, Tool Calling, 1M Context, Streaming, OpenAI-compatible, and you can weigh it on price and capability against other Large Language Model models, then switch by changing a single model-name string — no new account or integration. Browse every Large Language Model option with live pricing at apimodels.app/models.
What can DeepSeek V4 Flash do?
DeepSeek V4 Flash supports: High Throughput, Tool Calling, 1M Context, Streaming, OpenAI-compatible. See the APIMODELS docs for full parameters and call examples.
Can I access the DeepSeek V4 Flash API from anywhere (incl. China)?
Yes. APIMODELS exposes DeepSeek V4 Flash through a single unified API and one key — no separate provider accounts, and no need to handle each provider's regional network access yourself.
What payment methods are supported?
We support Stripe (Visa, Mastercard, and other international cards) and Alipay. Credits are available instantly after payment.
Related models
Related reading
How to get access, regional availability, and how this model compares with its alternatives.
- Use Claude, GPT and Gemini in DeepSeek Harness — one config block
- Free AI APIs in 2026: What Is Actually Free, and When to Pay
- Pay for AI APIs With Alipay: Claude, GPT, Gemini and DeepSeek Without a Foreign Card
- DeepSeek V4 Pro vs V4.1 Flash: Differences, Price and Which to Use (2026)
- DeepSeek V4.1 Flash API Pricing, Compared (2026) — Peak, Off-Peak and Every Provider