Coding-focused variant in the Kimi K2 family. Accepts text and image inputs, with reasoning on by default. Suited for long-horizon coding and agentic workflows.
Kimi K3.1 Pro is the first model in the Kimi K3.1 series, built for complex tasks such as long-horizon coding, 3D creation, and financial research. It excels at fixing issues in real codebases, multi-step tool use, and end-to-end project building, and can also handle game engine scripting, 3D modeling, and interactive scene generation. The model natively supports vision understanding and accepts video input, making it suitable for analyzing and generating mixed text-and-image content. Its thinking mode is always on, with reasoning effort adjustable on demand, making it useful for agent scenarios that require multi-turn planning, external tool collaboration, and result verification. It has a context window of about 1 million tokens and can be used for large codebases, long documents, and cross-document verification. The model supports function calling and structured output, and can be used in automated workflows with strict constraints on response format.
The DeepSeek V4 flagship, with the series' strongest deep reasoning and code generation, suited to whole-codebase analysis, multi-step automation and demanding instructions.
DeepSeek-V4.1-Flash is DeepSeek's current mainstay model; its official API model name is deepseek-flash. It supports a 1M context and up to 384K output, with thinking and non-thinking modes switchable by default, features image understanding, tool use, and JSON Output, and is compatible with the OpenAI and Anthropic APIs.