Sapling.ai

What it does

Sapling is a language model toolkit for developers and businesses that provides real-time writing suggestions inside workspaces and messaging platforms. It covers grammar and spelling checks, autocomplete, snippets, rephrasing, tone and sentiment checks, and detection of AI-generated text with an overall probability plus per-sentence predictions.

People use it in two main ways: as a browser extension or add-in that suggests edits while they write, and as an API or SDK that developers call from their own software. A support agent, for example, can accept a spelling fix, expand a snippet and take an autocomplete suggestion in a reply draft. The same tools can also be called by AI assistants through an MCP server.

It suits individual writers, support teams and developers who need writing assistance or AI-content detection. A free plan and a free one-month Pro trial are offered, though Free AI detector checks are capped at 2,000 characters. The API is billed on usage with a one-time $5 minimum, and Enterprise features such as SSO and team controls are quoted through sales.

What it can do

• Grammar and spelling checks with quality scoring and error reports
• Deep-learning autocomplete across messaging platforms
• Shared snippet library with text-expansion shortcuts
• Sentence rephrasing
• AI detection with an overall probability score and per-sentence predictions
• Sentiment and tone checks via API

Works with

• ServiceNow
• Salesforce
• Zendesk
• Amazon Connect
• Twilio Flex
• Google Docs
• Outlook
• Word

Before you choose

• Free accounts are limited to 2,000 characters per AI detector check and 20 snippets; Pro raises this to 100,000 characters.
• The API is billed per character with a one-time $5 minimum and returns JSON without a shareable result link, unlike Pro checks on sapling.ai.
• Enterprise pricing is quoted per seat after contacting sales and requires a minimum of 10 seats.

Listed under

• Productivity
• Writing and docs
• AI detection
• Autocomplete
• Customer support
• Developer API
• Grammar
• Mcp

Get started

Register (no credit card required) to start a free one-month Pro trial, or sign up for an API key.

1. Sign up for an account with the email you will use to subscribe, then confirm via the email you receive.
2. Install the Chrome extension or the Google Docs, Outlook or Word add-in, or generate an API key in the developer docs.
3. For API use, call the /edits or AI detection endpoint with your key, or install the Python or JavaScript SDK from the sample repository.

Pro is $25/month, or $12/month billed annually. A free one-month Pro trial is available once per account for individuals. The API is usage-based, billed monthly after subscribing, with a one-time $5 minimum; the API trial has a character limit and a 1-month expiration. Enterprise starts at 10 seats at $15/seat/month, with quotes varying by seats and contract duration.

30-day free trial.

Source: sapling.ai/pricing, checked 29 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 29 Oct 2026. Each source supports part of the overview; availability and prices can change.

• Language Model API Toolkit and Assistant | Sapling ↗sapling.ai
• Plans and Pricing | Sapling ↗sapling.ai
• Welcome | Sapling.ai Developer Documentation ↗sapling.ai

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sapling.ai: product, pricing and policy pages

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Last checked 29 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.