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Pricing sourced from DeepSeek · Last verified March 2026
Yes, the DeepSeek web chat at chat.deepseek.com and mobile apps are free to use with no usage caps for individual users. The paid offering is the developer API, which charges per token consumed rather than a monthly subscription. API pricing starts at $0.14 per million input tokens for DeepSeek-V3 cache hits and $0.55 per million for DeepSeek-R1, with output tokens at $1.10 and $2.19 respectively. New API accounts also receive free starter credits to test the platform.
DeepSeek-V3 and R1 score within a few percentage points of GPT-4o and Claude 3.5 Sonnet on coding benchmarks like HumanEval, MBPP, and LiveCodeBench, while costing roughly 20-50x less per token. For pure code generation, debugging, and algorithmic reasoning, most independent benchmarks rank DeepSeek among the top four models globally. However, Claude still leads on long-context code refactoring and following complex multi-file instructions, while GPT-4o has a larger plugin and tool ecosystem. DeepSeek excels at competitive-programming-style problems and offers the unique advantage of open weights for fine-tuning on proprietary codebases.
DeepSeek's hosted API routes data through servers in mainland China, which creates compliance challenges under GDPR, HIPAA, and US federal data regulations. For sensitive or regulated data, the recommended path is to self-host the open-weight DeepSeek-R1 or V3 models on your own infrastructure using Hugging Face, vLLM, or Ollama. Several US states and government agencies have banned DeepSeek's hosted app on official devices since early 2025, so enterprises should consult legal counsel before using the cloud API for production workloads involving personal data or proprietary information.
DeepSeek-V3 is a general-purpose chat model optimized for fast, low-cost responses across coding, writing, and Q&A tasks. DeepSeek-R1 is a reasoning model that generates an explicit chain-of-thought before answering, similar to OpenAI's o1, making it stronger on math, logic puzzles, and multi-step problems but slower and more expensive per query. Use V3 for most everyday tasks and switch to R1 when you need rigorous step-by-step reasoning or higher accuracy on complex problems. Both models are released as open weights under the MIT license, so you can self-host either or both depending on your workload requirements.
Yes, because DeepSeek released the full weights of V3 and R1 under the MIT license, you can fine-tune them on your own data without licensing restrictions or royalties. The community has already produced hundreds of distilled and fine-tuned variants on Hugging Face, including smaller 7B and 32B distillations of R1 that run on a single GPU. This is a significant advantage over ChatGPT and Claude, which only offer limited fine-tuning through their paid APIs and never release weights.
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