Open-source frontier model with unbeatable efficiency
DeepSeek V3 is the latest frontier model from Chinese AI lab DeepSeek, known for delivering top-tier performance at a fraction of the cost of competitors. Using a Mixture of Experts (MoE) architecture, V3 achieves GPT-5-class results on coding, math, reasoning, and multilingual benchmarks while using far less compute per query. The model is fully open-weight, allowing self-hosting and fine-tuning. DeepSeek V3 supports a 128K context window, vision capabilities, function calling, and multi-turn conversations. In 2026, DeepSeek also released DeepSeek-Coder-V3 (specialized for code) and DeepSeek-R1-V2 (reasoning-focused). The API is among the cheapest frontier-tier APIs available, making it popular with startups and cost-conscious developers.
Model weights are free. DeepSeek API: input $0.27/MTok, output $1.10/MTok, dramatically cheaper than GPT-5 or Claude 4.
DeepSeek V3
Use at chat.deepseek.com for consumer chat
Sign up at platform.deepseek.com for API access
Or download open-weight model from Hugging Face
Use OpenAI-compatible API endpoint
Send prompts with system messages and tools
Self-host on your infrastructure for full control
Best For
Developers and companies wanting frontier AI performance at the lowest cost
Last Updated
2026-03-10
DeepSeek V3 was released to the public, marking its official debut in the AI landscape.
DeepSeek V3
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