01.AI website screenshot

01.AI

01.AI, founded by Kai-Fu Lee, is the creator of the Yi family of open-source and proprietary LLMs. The Lingyiwanwu open platform exposes OpenAI-compatible inference for Yi-Lightning, Yi-Lightning-Lite, Yi-Large, and Yi-Vision.

01.AI publishes 1 API on the APIs.io network: Chat API. Tagged areas include AI, LLM, Yi, Open Source, and Foundation Models.

01.AI’s developer surface includes authentication, documentation, GitHub presence, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
35.0/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
2 APIs
AILLMYiOpen SourceFoundation ModelsInference

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 35.0/100 · thin
Contract Quality 14.6 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 6.9 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/01-ai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Lingyiwanwu Platform API

OpenAI-compatible chat completions and vision endpoints for the Yi model family. Base URL https://api.lingyiwanwu.com/v1. Available models include Yi-Lightning, Yi-Lightning-Lit...

01.AI Chat API

OpenAI-compatible chat completions for Yi text and vision models.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Lingyiwanwu Platform API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

01 Ai Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

01 Ai Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

01 Ai Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

01 Ai Authentication

http · 1 scheme

SECURITY

01 Ai Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

01 Ai Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub
GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

Review
Review

Source (apis.yml)

apis.yml Raw ↑ 
aid: 01-ai
url: https://raw.githubusercontent.com/api-evangelist/01-ai/refs/heads/main/apis.yml
name: 01.AI
kind: company
description: 01.AI, founded by Kai-Fu Lee, is the creator of the Yi family of open-source and proprietary LLMs. The Lingyiwanwu
  open platform exposes OpenAI-compatible inference for Yi-Lightning, Yi-Lightning-Lite, Yi-Large, and Yi-Vision.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/01-ai.png
tags:
- AI
- LLM
- Yi
- Open Source
- Foundation Models
- Inference
created: '2026-05-08'
modified: '2026-05-29'
specificationVersion: '0.19'
apis:
- aid: 01-ai:platform
  name: Lingyiwanwu Platform API
  description: OpenAI-compatible chat completions and vision endpoints for the Yi model family. Base URL https://api.lingyiwanwu.com/v1.
    Available models include Yi-Lightning, Yi-Lightning-Lite, Yi-Large, Yi-Large-Turbo, and Yi-Vision.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://platform.lingyiwanwu.com/docs
  baseURL: https://api.lingyiwanwu.com/v1
  tags:
  - AI
  - LLM
  - Chat Completions
  - Vision
  - OpenAI Compatible
  - Yi
  properties:
  - type: Documentation
    url: https://platform.lingyiwanwu.com/docs
  - type: Signup
    url: https://platform.lingyiwanwu.com/
  - type: GitHub
    url: https://github.com/01-ai/Yi
  - type: TechBlog
    url: https://01-ai.github.io/
  - type: Pricing
    url: https://platform.lingyiwanwu.com/
- aid: 01-ai:01-ai-chat-api
  name: 01.AI Chat API
  description: OpenAI-compatible chat completions for Yi text and vision models.
  humanURL: https://platform.lingyiwanwu.com/docs
  baseURL: https://api.lingyiwanwu.com/v1
  tags:
  - Chat
  properties:
  - type: OpenAPI
    url: openapi/01-ai-chat-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/01-ai-agentic-access.yml
- type: DomainSecurity
  url: security/01-ai-domain-security.yml
- type: Authentication
  url: authentication/01-ai-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/01-ai
- type: Website
  url: https://www.01.ai/
- type: Documentation
  url: https://platform.lingyiwanwu.com/docs
- type: GitHub
  url: https://github.com/01-ai
- type: Plans
  url: plans/01-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/01-ai-rate-limits.yml
- type: FinOps
  url: finops/01-ai-finops.yml
- type: Review
  url: review.yml
- url: https://www.lingyiwanwu.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com