Replit vs StepFun

Replit — Application · Private · $9B valuation · 4 of 4 figures sourced  |  StepFun — Foundation Models · Private · $10B valuation · 2 of 2 figures sourced

Relationship

Replit Design and 阶跃AI (StepFun AI) do comparable work on image generation; both also serve buyers who need to create images and video; similar scale (private).

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

4 of 5 capabilitiesShared product type

4 of 5 capabilities — Shares agentic coding, code generation, image generation and 1 more.

Ludbee capability tags · from the product records

Shared product type — Both ship AI agent and application.

Ludbee product records

Aligned comparison

FieldReplitStepFun
Valuation$9B$10B StepFun has 11% more
Employees195—
Founded20162023 7 yrs later
StatusPrivatePrivate match
CategoryApplicationFoundation Models
Stack layerAI agent, Application, PlatformAI agent, API service, Application, Developer tool, Model API
HeadquartersFoster City, USAShanghai, China

Capability overlap

Shared · 4

Agentic codingCode generationImage generationWorkflow automation

Not verified for StepFun · 1

Presentation generation

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

Not verified for Replit · 8

Agent orchestrationModel inferenceKnowledge retrievalSpeech to textText generationText to speechVoice agentSearch answers

Recorded for StepFun. Replit’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

Replit

Application

Replit DesignApplication

AI-powered design tool ("create stunning designs with AI") with ambient design suggestions and a template library.

Replit SlidesApplication

AI-powered presentation/slide-deck creation tool on Replit.

AI agent

Replit Agent 4AI agent

Builds and publishes a working application from a written description, then keeps editing it in place as the description changes — rebranded Agent 4, adding parallel task execution, a visual design canvas and kanban-style team workflows.

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.

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.

No counterpart

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

Platform

ReplitPlatform

Browser-based development environment whose agent builds, runs and deploys applications from natural-language prompts.

StepFun sells these in a stack layer with no product recorded for Replit 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.

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.

Model API

StepFun Open PlatformModel API

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