DeepSeek Chat
DeepSeek's web chat for DeepSeek-V3 and reasoning models, with open-weights releases.
DeepSeek Chat is DeepSeek's web chat for DeepSeek-V3 and reasoning models, with open-weights releases.
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Concepts you should know
- Chain of thought
Asking an LLM to spell out intermediate reasoning steps before producing the final answer. Improves accuracy on multi-step problems by ~10-30 percentage points on most reasoning benchmarks.
- DeepSeek R1
DeepSeek's open-weights reasoning model released January 2025. First open model to match OpenAI o1-level reasoning benchmarks. Disrupted the assumption that frontier capabilities require proprietary checkpoints.
- Reasoning token
Tokens spent by a reasoning model (o-series, DeepSeek R1, Claude with extended thinking) on hidden chain-of-thought before the visible answer. Billed separately at the same rate as output tokens. Can be 10-100× the visible-answer length on hard problems.
Frequently asked questions
- What is DeepSeek Chat?
- DeepSeek Chat is DeepSeek's web chat for DeepSeek-V3 and reasoning models, with open-weights releases.
- Is DeepSeek Chat free?
- DeepSeek Chat is free to use. There is no paid tier as of the last index update.
- What platforms does DeepSeek Chat support?
- DeepSeek Chat runs on web.
- What category does DeepSeek Chat belong to?
- DeepSeek Chat is in the AI Chatbots & Assistants category — Custom GPTs, Claude apps, niche assistants — chat interfaces aimed at a specific user, topic, or workflow.