01.AI vs StepFun

01.AI — Foundation Models · Private · 1 of 1 figure sourced  |  StepFun — Foundation Models · Private · $10B valuation · 2 of 2 figures sourced

Relationship

Yi and StepFun Open Platform both serve buyers who need to build on a hosted model API; 01.AI's scale not recorded.

Assembled from the recorded fields for this pair, not hand-checked. The comparison below is read from each company’s own profile.

4 of 7 capabilitiesShared product type

4 of 7 capabilities — Shares agent orchestration, model inference, text generation and 1 more.

Ludbee capability tags · from the product records

Shared product type — Both ship application and model API.

Ludbee product records

Aligned comparison

Field01.AIStepFun
Sizenot disclosed$10B valuation
Employees——
Founded20232023 match
StatusPrivatePrivate match
CategoryFoundation ModelsFoundation Models match
Stack layerApplication, Model API, PlatformAI agent, API service, Application, Developer tool, Model API
HeadquartersBeijing, ChinaShanghai, China

Capability overlap

Shared · 4

Agent orchestrationModel inferenceText generationWorkflow automation

Not verified for StepFun · 3

Data analysisFinancial analysisSales outreach

Recorded for 01.AI. StepFun’s product records say nothing either way — a missing record is not a missing capability.

Not verified for 01.AI · 8

Agentic codingCode generationImage generationKnowledge retrievalSpeech to textText to speechVoice agentSearch answers

Recorded for StepFun. 01.AI’s product records say nothing either way — a missing record is not a missing capability.

Products, side by side

Algorithmic pairing — assembled from recorded fields, not hand-checked

01.AI

Application

Boss AIApplication

Agent product for executives that turns company data into tracked decisions and action items.

Investor AIApplication

A decision platform for investment, M&A and strategic-opportunity judgment that integrates market, financial and research data, validates investment theses, and surfaces due-diligence risks for investment committees.

TopSales AIApplication

Agent product for sales teams covering lead research, outreach and follow-up.

Model API

YiModel API

01.AI's open-weight large language model family (Yi-6B/9B/34B, including 200K-context variants), released under Apache 2.0 for commercial and research use; also served through 01.AI's own hosted platform, platform.lingyiwanwu.com, whose playground access is by whitelist application rather than public self-serve.

StepFun

Application

阶跃AI (StepFun AI)Application

StepFun's consumer AI assistant, available on the web and as Windows and macOS desktop clients, offering web search, knowledge-base Q&A, image creation, tool use and speech recognition.

Model API

StepFun Open PlatformModel API

API access to StepFun's text, vision, speech and image models, with credit packages and enterprise plans.

No counterpart

01.AI sells these in a stack layer with no product recorded for StepFun yet — nothing on the other side to compare them against.

Platform

TrueNorth AI Decision PlatformPlatform

Platform for building enterprise decision and analysis agents on 01.AI's models.

StepFun sells these in a stack layer with no product recorded for 01.AI yet — nothing on the other side to compare them against.

API service

Step PlanAPI service

A subscription service from the StepFun Open Platform that supplies a monthly Credit pool for calling StepFun's flagship models from third-party coding tools and agent clients such as Claude Code, Cursor, OpenClaw, Cline and Zed.

AI agent

StepClawAI agent

A one-click cloud-deployed AI agent offered inside the 阶跃AI assistant that interprets instructions and carries out tasks autonomously.

Developer tool

阶跃星辰 AI Studio (StepFun AI Studio)Developer tool

A browser-based workspace for building, testing and deploying AI applications on StepFun's models, with a playground, a showcase library of example apps and a personal asset library.