TOMORROW’S TECH
← Writing

Grammarly

Grammarly · #16 most active of 26 in Writing

Compare →

Grammar, tone and generative rewriting across browser, desktop and mobile.

Current version

Docs era

Entry cost

Free tier, Pro $12/mo

Changes / 30d

0

Capabilities

  • Grammar and tone
  • Generative rewriting
  • Plagiarism detection
  • AI detection
  • Docs editor

Pricing

  • Free

    Free

  • Pro

    $12

  • Enterprise

    $33

Entry price over time

Not enough pricing history yet — we start charting from the second observation.

Geek mode

Models under the hood

  • Undisclosed frontier LLM

    Unknown

    unknown

  • In-house NLP models

    Grammarly

    disclosed

Context window

Not published

Public API

yes

Multi-model routing

no

Stack signals

  • Browser extension
  • Native desktop

Shared model stack

Other tracked products running on the same foundation models — a quick read on how much of the catalog moves when one of these models changes.

green disclosed · amber inferred · grey unknown

Reported scale

Reference data. Each figure is whatever the source actually said — weekly users, downloads, revenue run-rate — with its own definition and date. These are not comparable between tools and are never used to rank anything.

Also in Writing

All Writing
Kimi

Moonshot AIChina

5

Long-context assistant and agentic K-series models.

Version
K3
Cost
Free consumer tier; per-token API (kimi-k3, k2.7-code, k2.6). K2.5 and moonshot-v1 sunset Aug 31, 2026.
Model
Kimi K3
Claude

Anthropic

2

Assistant for long-form and analysis

Version
Fable 5
Cost
from $20/mo
Model
Claude Fable 5
DeepSeek

DeepSeekChina

2

Open-weight reasoning models at a fraction of frontier pricing.

Version
V3.2
Cost
Free chat, API from $0.28/M input
Model
DeepSeek-V3.2
Qwen Chat

AlibabaChina

2

Alibaba's assistant on the widely forked Qwen model family.

Version
Qwen3-Max
Cost
Free tier, Model Studio pay-as-you-go
Model
Qwen3-Max
Z.ai GLM

Zhipu AIChina

2

GLM assistant with strong open-weight releases.

Version
GLM-4.7
Cost
Free tier, coding plan from $3/mo
Model
GLM-4.7
ChatGPT

OpenAI

1

General-purpose assistant

Version
GPT-5.2
Cost
Free tier, Plus $20/mo
Model
GPT-5.2

Elsewhere on the same models

Products in other segments that name one of Grammarly's models in their stack.

AlphaSense

AlphaSense

Market intelligence search

Version
Generative Search
Cost
Seat-based enterprise pricing
Model
Undisclosed frontier LLM
Brex AI

Brex

Spend management copilot

Version
2026 platform
Cost
Included with Brex plans
Model
Undisclosed frontier LLM
dbt Copilot

dbt Labs

1

AI for the analytics engineer

Version
2026 release
Cost
Included in dbt Cloud paid tiers
Model
Undisclosed frontier LLM
OpenEvidence

OpenEvidence

Medical answers with citations

Version
2026 platform
Cost
Free for verified clinicians
Model
Undisclosed frontier LLM
Ramp Intelligence

Ramp

AI for spend and procurement

Version
2026 platform
Cost
Free tier, Plus $15/user/mo
Model
Undisclosed frontier LLM
Surfer SEO

Surfer

Content optimisation for search

Version
2026 platform
Cost
from $99/mo
Model
Undisclosed frontier LLM

Change history

  • capability

    Added an AI detection feature to the Pro plan

    Grammar and tone, Generative rewritingGrammar and tone, Generative rewriting, AI detection

    source