Kimi K2.5 builds on Kimi K2 with continued pretraining over approximately 15T mixed visual and text tokens. Built as a native multimodal model, K2.5 delivers state-of-the-art coding and vision capabilities and a self-directed agent swarm paradigm. (View Highlight)
For complex tasks, Kimi K2.5 can self-direct an agent swarm with up to 100 sub-agents, executing parallel workflows across up to 1,500tool calls. Compared with a single-agent setup, this reduces execution time by up to 4.5x. The agent swarm is automatically created and orchestrated by Kimi K2.5 without any predefined subagents or workflow. (View Highlight)
Kimi K2.5 is available via Kimi.com, the Kimi App, the API, and Kimi Code. Kimi.com & Kimi App now supports 4 modes: K2.5 Instant, K2.5 Thinking, K2.5 Agent, and K2.5 Agent Swarm (Beta). Agent Swarm is currently in beta on Kimi.com, with free credits available for high-tier paid users. (View Highlight)
Kimi K2.5 is the strongest open-source model to date for coding, with particularly strong capabilities in front-end development. (View Highlight)
K2.5 can turn simple conversations into complete front-end interfaces, implementing interactive layouts and rich animations such as scroll-triggered effects. Below are examples generated by K2.5 from a single prompt with image-gen tool: (View Highlight)
Beyond text prompts, K2.5 excels at coding with vision. By reasoning over images and video, K2.5 improves image/video-to-code generation and visual debugging, lowering the barrier for users to express intent visually. (View Highlight)
K2.5 excels in real-world software engineering tasks. We evaluate it using Kimi Code Bench, our internal coding benchmark covering diverse end-to-end tasks — from building to debugging, refactoring, testing, and scripting — across multiple programming languages. On this benchmark, K2.5 shows consistent and meaningful improvements overK2across task types. (View Highlight)
To try out K2.5’s agentic coding capabilities, K2.5 Agent offers a set of preconfigured tools for immediate, hands-on experiences. For software engineering use cases, we recommend pairing Kimi K2.5 with our new coding product, Kimi Code. (View Highlight)
Kimi Code works in your terminal and can be integrated with various IDEs including VSCode, Cursor, Zed, etc. Kimi Code is open-sourced and supports images and videos as inputs. It also automatically discovers and migrates existing skills and MCPs into your working environment in Kimi Code. (View Highlight)
K2.5 Agent Swarmimproves performance on complex tasks through parallel, specialized execution. In our internal evaluations, it leads to an 80%reduction in end-to-end runtime while enabling more complex, long-horizon workloads, as shown below. (View Highlight)
Agent Swarm reduces the minimum critical steps required to achieve target performance by 3×–4.5× compared to single-agent execution in wide search scenario, with savings scaling as targets rise—translating to up to 4.5× wall-clock time reduction via parallelization. (View Highlight)
K2.5 Agent can handle high-density, large-scale office work end to end. It reasons over large, high-density inputs, coordinates multi-step tool use, and delivers expert-level outputs: documents, spreadsheets, PDFs, and slide decks—directly through conversation. (View Highlight)
With a focus on real-world professional tasks, we design two internal expert productivity benchmarks. The AI Office Benchmark evaluates end-to-end Office output quality, while the GeneralAgent Benchmark measures multi-step, production-grade workflows against human expert performance. Across both benchmarks, K2.5 shows59.3% and 24.3% improvements over K2 Thinking, reflecting stronger end-to-end performance on real-world tasks. (View Highlight)
K2.5 agent supports advanced tasks such as adding annotations in Word, constructing financial models with Pivot Tables, and writing LaTeX equations in PDFs, while scaling to long-form outputs like 10,000-word papers or 100-page documents. (View Highlight)
Grounded in advances in coding with vision, agent swarms, and office productivity, Kimi K2.5 represents a meaningful step toward AGI for the open-source community, demonstrating strong capability on real-world tasks under real-world constraints. Looking ahead, we will push further into the frontier of agentic intelligence, redefining the boundaries of AI in knowledge work. (View Highlight)
