OpenRouter vs StepFun

OpenRouter — Infrastructure · Private · $1.3B valuation · 3 of 3 figures sourced  |  StepFun — Foundation Models · Private · $10B valuation · 2 of 2 figures sourced

Relationship

OpenRouter and StepFun Open Platform both serve buyers who need to build on a hosted model API, draft and edit written content and serve a model in production; larger 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 4 capabilitiesShared product typeLarger scale

4 of 4 capabilities — Shares agent orchestration, agentic coding, model inference and 1 more.

Ludbee capability tags · from the product records

Shared product type — Both ship developer tool and model API.

Ludbee product records

Larger scale — StepFun: $10B valuation, against OpenRouter's $1.3B valuation.

Ludbee scale figures · valuation, market cap or revenue estimate

Aligned comparison

FieldOpenRouterStepFun
Valuation$1.3B$10B StepFun has 7.7× more
Employees——
Founded20232023 match
StatusPrivatePrivate match
CategoryInfrastructureFoundation Models
Stack layerDeveloper tool, Model APIAI agent, API service, Application, Developer tool, Model API
HeadquartersSan Francisco, USAShanghai, China

Capability overlap

Shared · 4

Agent orchestrationAgentic codingModel inferenceText generation

Not verified for OpenRouter · 8

Code generationImage generationKnowledge retrievalSpeech to textText to speechVoice agentSearch answersWorkflow automation

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

OpenRouter has no capability StepFun lacks, among the 4 recorded here.

Products, side by side

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

OpenRouter

Developer tool

OriDeveloper tool

OpenRouter's suite of agentic developer tools for using any hosted model "right where you are": Ori Harness (CLI) and Ori Code (terminal coding agent) are GA; Ori Eval finds the best model for a task; Ori Intern (Slack) is in private testing and Ori Desktop (Mac) is waitlisted.

Model API

OpenRouterModel API

Single API that routes requests to models from many providers and bills them through one account.

StepFun

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.

No counterpart

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

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.

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.

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