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DeepSeek
New LaunchOpen-weight frontier reasoning models
by DeepSeek
Overview
DeepSeek is a Chinese AI lab known for open-weight frontier models that rival closed competitors at a fraction of the cost. Its chat and reasoning models are free on the web and app, and its low-cost API has made it a favorite among developers worldwide.
Key Features
- β’Free web and app chat access
- β’Strong open-weight reasoning models
- β’DeepThink mode for hard problems
- β’Very low-cost developer API
- β’Open weights for self-hosting
- β’Solid coding and math performance
Use Cases
- βGeneral chat and reasoning tasks
- βCost-sensitive API integrations
- βSelf-hosted private deployments
- βMath and coding assistance
Pros
- βFrontier quality at low cost
- βOpen weights enable self-hosting
- βFree unlimited web chat
Cons
- βData residency concerns for some users
- βPeak-time capacity throttling
Frequently Asked Questions
Is DeepSeek free?
Yes, web and app chat are free; the API is paid but significantly cheaper than most rivals.
Are DeepSeek models open source?
Model weights are openly released, allowing self-hosting and fine-tuning.
What is DeepThink?
A reasoning mode where the model thinks step-by-step before answering hard questions.
Can businesses use DeepSeek?
Yes, via the low-cost API or by self-hosting the open-weight models.
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Basic Info
- Pricing
- Freemium
- Category
- Chat Assistants
- Launch Date
- 2026-07-26
- Maker
- DeepSeek