01.AI Yi
What is 01.AI Yi?
01.AI Yi is an enterprise AI model family for teams building products that need text, image, and code capabilities. It includes Yi-Lightning, Yi-Large, Yi-VL-6B/34B, Yi-1.5-6B/9B/34B, and Yi-Coder-1.5B/9B, with releases on Hugging Face, ModelScope, and GitHub. The open models also come with commercial licensing, and the lineup spans chat, multimodal, reasoning, long-context code generation, and enterprise AI agent tailored solutions.
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At a glance
- 01.AI Yi is best for teams building enterprise AI products that need open models and multimodal or code capabilities.
What does 01.AI Yi do?
01.AI's Yi lineup centers on foundation models and enterprise AI agent solutions that turn text, image, and code workloads into deployable products. The portfolio includes Yi-Lightning, a mixture-of-experts LLM, plus Yi-Large, Yi-VL-6B/34B for multimodal conversations and image understanding, Yi-1.5-6B/9B/34B for chat, base, coding, math, reasoning, and instruction-following, and Yi-Coder-1.5B/9B for long-context code generation across 52 languages. The models are distributed through Hugging Face, ModelScope, and GitHub, with commercial licensing available for the open-source releases. 01.AI positions the platform around enterprise deployment rather than a consumer app layer. Its site frames the vision as improving human productivity and building AI-first applications, and it shows a "Super Employee" enterprise agent direction. The public pages also point to a broader ecosystem of tech reports and blogs, while the model pages show context lengths up to 128K for coding and 4K, 16K, and 32K for chat models. The company says AI 2.0 could create a platform opportunity ten times larger than the mobile internet.
Why use 01.AI Yi?
- Open-source model releases let teams evaluate and adapt the stack without starting from a closed black box.
- Distribution through Hugging Face, ModelScope, and GitHub makes the models easy to inspect, compare, and adopt.
Who is 01.AI Yi for?
- Product teams that want open foundation models for enterprise AI applications.
- Developers who need code generation models with long-context support.
- ML engineers evaluating multimodal models for text-image workflows.
- Business teams exploring enterprise AI agents for internal productivity use cases.
What are 01.AI Yi's key features?
Enterprise AI Agent Tailored Solutions
Build enterprise AI agents tailored to business workflows, with deployment patterns designed for large organizations that want custom automation rather than generic chatbots.
Yi-Lightning Global SOTA Mixture-of-Experts LLM
Use the Yi-Lightning Mixture-of-Experts model for high-capacity language tasks, giving teams a current-generation LLM option for demanding enterprise workloads.
Yi Open-source
Access the Yi open-source model family through public code and model releases on GitHub, which helps teams inspect, adapt, and extend the stack.
Yi-Lightning
Run Yi-Lightning as a standalone model for general language generation, with a model line positioned for enterprise use and broader productivity gains.
Yi-Large
Choose Yi-Large for heavier language tasks that need a larger model footprint, useful when teams want stronger output quality across complex prompts.
Yi-VL-6B/34B
Work with Yi-VL-6B/34B for vision-language tasks, combining image and text understanding in model sizes suited to different deployment needs.
Yi-1.5-6B/9B/34B
Select Yi-1.5 models in 6B, 9B, or 34B sizes for text generation and reasoning, with multiple checkpoints to match cost and quality targets.
Yi-Coder-1.5B/9B
Use Yi-Coder-1.5B/9B for code generation and developer assistance, with model sizes that fit lighter or more capable coding workflows.
What does 01.AI Yi integrate with?
- Hugging Face
- ModelScope
- GitHub
What are 01.AI Yi's use cases?
Enterprise agents for internal teams
Business teams exploring enterprise AI agents use 01.AI Yi to automate internal knowledge work, using Enterprise AI Agent Tailored Solutions to build assistants for drafting, searching, and summarizing company information. They can pair that with Yi-Lightning for faster responses when employees need answers during the workday.
Long-context coding support
Developers who need code generation models with long-context support use 01.AI Yi to work across larger codebases, using Yi-Coder-1.5B/9B to generate and refine code with fewer context resets. Teams can also evaluate Yi-1.5-6B/9B/34B when they want a broader model choice for different coding workloads.
Text-image workflows for ML teams
ML engineers evaluating multimodal models use 01.AI Yi to prototype text-image workflows, using Yi-VL-6B/34B to analyze visual inputs alongside prompts. They can compare outputs with Yi-Large when they need a stronger general-purpose model for enterprise experiments.
Open models for product teams
Product teams that want open foundation models for enterprise AI applications use 01.AI Yi to test and adapt models before rollout, using Yi Open-source to inspect and integrate model behavior into their stack. They can move from experimentation to deployment planning with Yi-Lightning Global SOTA Mixture-of-Experts LLM for higher-performance use cases.
How does 01.AI Yi work?
- Start with the model family that matches your workflow, such as Yi-Coder-1.5B/9B, Yi-VL-6B/34B, or Yi-Lightning, then review the model card and intended use before testing.
- Connect your preferred development environment through GitHub, Hugging Face, or ModelScope, and pull the selected Yi model into your evaluation or prototype workflow.
- Run prompts, code tasks, or multimodal tests against Yi-1.5-6B/9B/34B or Yi-Large, then compare outputs for accuracy, latency, and fit to your enterprise requirements.
- Use Yi Open-source to inspect model behavior and adapt your implementation, or choose Enterprise AI Agent Tailored Solutions when you need a more guided internal assistant setup.
- Iterate on prompts and deployment settings as your team learns what works, then keep the best-performing model in production for ongoing productivity gains.
Frequently asked questions
What is 01.AI Yi?
01.AI Yi is an enterprise AI model family for teams building products that need text, image, and code capabilities. It includes Yi-Lightning, Yi-Large, Yi-VL-6B/34B, Yi-1.5-6B/9B/34B, and Yi-Coder-1.5B/9B, with releases on Hugging Face, ModelScope, and GitHub. The open models also come with commercial licensing, and the lineup spans chat, multimodal, reasoning, and long-context code generation.
What is 01.AI Yi used for? Who is it for?
01.AI Yi is used for Enterprise AI Agent Tailored Solutions, Yi-Lightning Global SOTA Mixture-of-Experts LLM, and Yi Open-source. It's built for Product teams that want open foundation models for enterprise AI applications, Developers, and ML engineers evaluating multimodal models for text-image workflows.
Does 01.AI Yi have an API and what does it integrate with?
01.AI Yi doesn't publish a public API. It integrates with Hugging Face, ModelScope, GitHub.
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