DeepSeek V4
A large open-weight mixture-of-experts model with a 1M-token context and strong reasoning at a low price.
DeepSeek V4 specifications
| Provider | DeepSeek |
|---|---|
| Context window | 1,000,000 tokens (1.0M) |
| Input price | $0.43 / 1M tokens |
| Output price | $0.87 / 1M tokens |
| Inputs | Text |
| Reasoning mode | Yes |
| Vision (image input) | No |
| Tool / function calling | Yes |
| Native real-time web | No |
| Open-weight | Yes |
Pricing & context web-verified June 2026 — confirm on DeepSeek's pricing page. V4 Pro tier; context-cache hits bill far less. A cheaper V4 Flash tier ($0.14 / $0.28 per 1M) is also available.
What DeepSeek V4 is best for
- Cost-sensitive reasoning and coding
- Long-context analysis at low cost
- Self-hosted / open-weight deployments
How to prompt DeepSeek V4
- Text-only — use a multimodal model if you need image input.
- It reasons while calling tools — give it tools for agentic tasks.
- Cache context to cut cost further; a cheaper V4 Flash tier exists for high-volume work.
Work with DeepSeek V4
- Build an optimized prompt with the DeepSeek prompt generator.
- Estimate cost with the token counter & cost calculator, or compare every model on the AI model comparison page.
- Related reading: Best Deepseek Prompts 2026 · How To Use Deepseek.
- Official: chat.deepseek.com
Frequently asked questions
What is DeepSeek V4's context window?
DeepSeek V4 has a 1,000,000-token context window (about 1.0M tokens) — the maximum amount of text it can consider at once.
How much does DeepSeek V4 cost?
Via the DeepSeek API, DeepSeek V4 costs $0.43 per 1M input tokens and $0.87 per 1M output tokens (web-verified June 2026). Output tokens cost more, so the length of the model's reply usually drives the bill.
Is DeepSeek V4 multimodal?
No — DeepSeek V4 is text-only. Use a vision-capable model if you need to send images.
Is DeepSeek V4 open-weight?
Yes — DeepSeek V4 is open-weight, so you can self-host it or run it through a third-party host.