DeepSeek DeepSeek
DeepSeek is a Chinese AI research lab that provides open-weight foundation models and a low-cost, OpenAI-compatible developer API. Their flagship V4 models offer advanced reasoning and coding capabilities optimized for high-volume agentic workflows.
General availability of V4-Pro (0813 build) on August 13, 2026, featuring reasoning effort controls, DSpark speculative decoding, and native OpenAI Responses API support, followed by a transition to peak/off-peak billing on August 16.
As of
- OpenAI-compatible Responses API
- Reasoning effort control (Non-thinking to Max)
- 1M-token context window
- Context caching
- Tool calls and JSON mode
High-volume text tasks, coding assistants, and agentic workflows requiring cost-effective alternatives to frontier models.
Applications requiring multimodal input (image/audio/video) or those subject to strict data sovereignty and residency regulations.
Pay-per-token API with peak (01:00-04:00 and 06:00-10:00 UTC) and off-peak pricing. V4-Pro costs $0.66-$1.32/M input (cache miss) and $1.98-$3.96/M output, while V4-Flash costs $0.22-$0.44/M input and $0.66-$1.32/M output.
A high-performance, cost-effective challenger to Western frontier models that is best suited for budget-conscious developers who can leverage off-peak scheduling and handle potential data residency considerations.
Is DeepSeek free?
DeepSeek is Paid. Pay-per-token API with peak (01:00-04:00 and 06:00-10:00 UTC) and off-peak pricing. V4-Pro costs $0.66-$1.32/M input (cache miss) and $1.98-$3.96/M output, while V4-Flash costs $0.22-$0.44/M input and $0.66-$1.32/M output. Check the official site for current plans.
What is DeepSeek best for?
High-volume text tasks, coding assistants, and agentic workflows requiring cost-effective alternatives to frontier models.
Who makes DeepSeek?
DeepSeek is developed by DeepSeek. It is listed in the General-Purpose AI Assistants (with Strong Coding Capability) category on ai.dosa.dev.
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