Kimi K3 vs Hy3
Compare Kimi K3 and Hy3 side-by-side. See comparisons of price, response speed, accuracy, and file support to choose the best model for your task.
Overview
Kimi K3 vs Hy3 Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
Kimi / Kimi K3
proDescription
Moonshot AI's flagship and the successor to the K2 line, built for work that runs long. Kimi K3 reasons on every request with adjustable effort, holds an entire repository in one session, and reads images and video natively. Built for long-horizon coding, agentic workflows, and visual engineering. Moonshot notes it can act proactively when instructions are ambiguous, so clear direction helps.
Tencent / Hy3
lightDescription
Tencent’s open-weight reasoning model, built for agents rather than chat. Hy3 blends fast and slow thinking, switching between quick replies and deep reasoning, and Tencent tuned it hard for real production work: tool use, long agent loops, and search. It activates only a fraction of its parameters per token, so it is unusually cheap to run for its capability. Text only. Open weights, Apache 2.0.
About
About
Capabilities
Comparison
Why Use Kimi K3 and Hy3?
Aymo gives you more than access to individual models—it provides a complete multi-model AI workspace designed for productivity.
Kimi / Kimi K3
proCoding With Live Feedback
Moonshot invested most heavily here. Built to navigate large repositories, use tools, debug, and iterate against images, logs, tests, and runtime feedback with limited supervision.
Always-On Adjustable Reasoning
Reasoning runs by default on every request, with effort, you can dial up or down. Fast tasks stay quick while hard problems get the depth they need.
Massive Context Recall
Holds a full mid-sized codebase or a long document set in a single prompt. Its hybrid linear attention is what keeps a window that large affordable to serve.
Knowledge Work Artifacts
Built to produce complete software or knowledge-work artifacts with limited supervision, rather than returning text you assemble afterwards. Suited to research synthesis, document review, and technical documentation.
Multi-Step Research
Conducts multi-step research and coordinates terminal tools, carrying a task through from start to finish. A swarm variant coordinates large numbers of parallel sub-agents for wide research.
Native Image And Video
Processes text, images, and video within the same model rather than bolting on a separate vision module. Moonshot highlights frontend engineering, game development, and CAD workflows.
Tencent / Hy3
lightProduction Software Engineering
Tencent reports strong software development, front-end design, and even game production, refined through its own WorkBuddy and CodeBuddy products. It concedes repository-scale coding to the strongest open rival but performs well on real, shippable work.
Fast And Slow Thinking
A hybrid reasoning design with selectable effort: a no-think mode for quick replies, and deeper modes for hard problems. That lets you spend reasoning only where a task needs it, keeping simple steps fast and cheap.
Long-Context Retrieval
Holds a large context and is tuned to parse messy, lengthy input while following complex rules. Tencent reports it powering agent workflows of hundreds of steps without losing the thread.
Office And Productivity Work
Tencent highlights office productivity, financial modelling, and document generation, including PowerPoint creation through its Yuanbao product. Built for structured, real-world business output rather than long-form prose.
Agentic Search And Tool Use
Its standout strength. Tencent reports leading the open field on agentic search and tool orchestration, retrieving, filtering, and integrating information across sources. Works with agent frameworks like OpenClaw, OpenCode, and Cline.
Text Only Input
Reads and writes text. No image, audio, or video input. Despite the Hunyuan family including media models, Hy3 itself is a pure reasoning and agentic language model, so screenshots and diagrams are outside what it reads.
Why Aymo
Why chat with Kimi K3 and Hy3 on Aymo AI?
Aymo gives you more than access to Kimi K3 and Hy3—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how Kimi K3 and Hy3 performs alongside Claude, Gemini, Grok, and other leading AI models.
One Workspace
Keep all your AI conversations, files, and prompts in a single organized workspace.
Switch Models Instantly
Move between different AI models without restarting your conversation.
Upload Once
Use the same files across multiple AI models without uploading them again.
Save & Organize
Bookmark important chats, organize projects, and return anytime.
Work Together
Share conversations and collaborate with teammates in one place.