DeepSeek vs Superhuman

DeepSeek — Foundation Models · Private · $50B valuation · 4 of 4 figures sourced  |  Superhuman — Application · Private · 1 of 1 figure sourced

Relationship

DeepSeek and Grammarly do comparable work on summarization; both also serve buyers who need to draft and edit written content; Superhuman'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.

3 of 6 capabilitiesShared product type

3 of 6 capabilities — Shares agent orchestration, summarization and text generation.

Ludbee capability tags · from the product records

Shared product type — Both ship application.

Ludbee product records

Aligned comparison

FieldDeepSeekSuperhuman
Size$50B valuationnot disclosed
Employees160—
Founded20232009 14 yrs earlier
StatusPrivatePrivate match
CategoryFoundation ModelsApplication
Stack layerApplication, Developer tool, Model APIApplication, Platform
HeadquartersHangzhou, ChinaSan Francisco, USA

Capability overlap

Shared · 3

Agent orchestrationSummarizationText generation

Not verified for Superhuman · 3

Agentic codingCode generationModel inference

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

Not verified for DeepSeek · 2

Email assistanceWorkflow automation

Recorded for Superhuman. DeepSeek’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

DeepSeek

Application

DeepSeekApplication

Assistant app for chat, reasoning and code questions, built on DeepSeek's own models.

Superhuman

Application

GrammarlyApplication

The writing assistant that gave the company its old name: spelling, grammar and tone correction across a million apps and websites, with generative rewrites, plagiarism and AI-text detection on the paid tier.

Superhuman DocsApplication

A collaborative-docs surface where a team's data and AI meet, the renamed successor to the acquired Coda.

Superhuman GoApplication

An AI assistant that works across the applications a person already uses, rather than living in its own chat window.

Superhuman MailApplication

An AI-assisted email client, the product the company was originally named for, now sold as one app inside the Superhuman Platform.

No counterpart

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

Developer tool

DeepSeek HarnessDeveloper tool

Open-source framework for building agents from composable plugins, distributed under the MIT license as a developer-preview initiative (install via `npx @deepseek-ai/dsh web` or clone from GitHub).

Model API

DeepSeek API PlatformModel API

API access to DeepSeek's chat and reasoning models.

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

Platform

Superhuman PlatformPlatform

The umbrella under which Superhuman now sells Mail, Docs and Go as one subscription, plus a marketplace of third-party agents and connectors.