Duolingo vs xAI

Duolingo — Application · Public · $7.3B mkt cap · 4 of 4 figures sourced  |  xAI — Foundation Models · Acquired · $230B valuation · 3 of 3 figures sourced

Relationship

Duolingo Max and Grok do comparable work on voice agent; both also serve buyers who need to draft and edit written content; xAI is acquired, with no independent scale.

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

3 of 4 capabilitiesShared product type

3 of 4 capabilities — Shares speech to text, text generation and voice agent.

Ludbee capability tags · from the product records

Shared product type — Both ship application.

Ludbee product records

Aligned comparison

FieldDuolingoxAI
Size$7.3B mkt cap$230B valuation different basis
Employees900—
Founded20112023 12 yrs later
StatusPublicAcquired
CategoryApplicationFoundation Models
Stack layerApplicationAI agent, API service, Application, Model API
HeadquartersPittsburgh, USASan Francisco, USA

Capability overlap

Shared · 3

Speech to textText generationVoice agent

Not verified for xAI · 1

Education and tutoring

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

Not verified for Duolingo · 9

Agent orchestrationAgentic codingCode generationImage generationSummarizationText to speechVideo generationVoice conversionSearch answers

Recorded for xAI. Duolingo’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

Duolingo

Application

Duolingo English TestApplication

An online English proficiency exam scored by machine learning and accepted by institutions worldwide, with results in two days.

Duolingo MaxApplication

The subscription tier where the AI features live: Video Call with an animated tutor, Roleplay conversations and Explain My Answer, sitting on top of everything Super already removes from the free course.

xAI

Application

GrokApplication

Assistant for chat, real-time web and X search, image generation and voice, on the web and in the X apps.

GrokipediaApplication

AI-generated reference encyclopedia, freely browsable without sign-in, listed in x.ai's own top-level Products nav.

No counterpart

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

API service

Grok Imagine APIAPI service

API for generating and editing images and video via Grok Imagine, distinct from the consumer Imagine surface inside the Grok app.

Grok VoiceAPI service

Voice agent builder and API suite from xAI: real-time speech-to-speech conversational agents, speech-to-text transcription, text-to-speech, voice cloning and (upcoming) live translation, built on Grok.

AI agent

Grok BotAI agent

Persistent AI teammate agents that retain context and learn from prior work across sessions, for delegated business tasks (e.g. account management).

Grok BuildAI agent

Terminal-based coding agent powered by Grok 4.6 with plan mode, subagents, skills, plugins and MCP-server support for software development workflows.

Model API

xAI APIModel API

Hosted API for the Grok models, billed per token.

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