Is Twitter AI Reply free?

Yes, Twitter AI Reply is completely free to use.

Twitter AI Reply

Twitter AI Reply is an open-source Chrome extension that adds AI-generated reply drafts to the X/Twitter web reply flow and uses the user's own OpenAI API key.

Category:AI for Twitter

free

Last Updated 8/28/2026

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About Twitter AI Reply

Twitter AI Reply is a small open-source Chrome extension for drafting replies inside the X/Twitter web interface. The developer README describes it as a tool that analyzes tweets with an LLM and generates contextually relevant, witty, and engaging reply suggestions. The implementation is simpler than many commercial social media assistants: users enter their name, email, OpenAI API key, and a self-description in the extension popup, then open X, click a tweet reply action, choose a sentiment such as positive, dramatic, negative, or witty, and generate a reply draft. The manifest shows a Manifest V3 Chrome extension with storage permission and a content script matching twitter.com. The content script reads tweet text from the page, calls OpenAI's chat completions API in the browser with the user's stored key, and inserts the generated text into the reply composer for review. This makes the tool most relevant for technical users who want a transparent, self-managed reply assistant rather than a hosted social automation platform. The main caveat is current availability: the Chrome Web Store URL is still the official distribution link in the README, but live checks of the store and Google update endpoint did not return a normal installable package. Treat it as a code-backed, BYO-key extension that may require manual inspection or sideloading unless the store listing becomes available again.

Best for

X/Twitter users who are comfortable configuring their own OpenAI API key in a browser extension.

Indie makers and personal-brand builders who want faster first drafts for public replies without paying a separate reply-tool subscription.

Developers or technically confident creators who prefer inspecting an open-source extension before using it in a social account workflow.

Best use cases

Replying to a tweet from the X web reply modal, selecting a tone such as positive, dramatic, negative, or witty, and generating a short draft before editing and sending manually.

Setting up a personal profile description in the extension popup so generated replies can reflect a chosen professional background or writing persona.

Auditing a lightweight Chrome extension before use by checking the manifest permissions, local storage behavior, OpenAI client call, and MIT license in the GitHub repository.

Replacing a paid social-reply SaaS trial with a self-managed browser workflow where the user controls the OpenAI account and accepts the maintenance risk.

Compare before choosing

Compare ReplyGen when you want a currently maintained Chrome Web Store listing, transparent one-time pricing, and a packaged X reply workflow rather than self-hosting or sideloading.

Compare XposterAI when you need a broader X creator toolkit, persona voice training, reply credits, and a supported subscription product.

Compare Planable's free tweet reply generator when a web form is enough and you do not want to install a browser extension or provide an API key.

Compare direct ChatGPT or OpenAI playground use when privacy review or Chrome extension installability matters more than in-page reply buttons.

Features

In-page reply drafting

Adds an AI Reply control to the X/Twitter reply modal so a draft can be generated while the user is already responding to a tweet.

Bring-your-own OpenAI key

Uses the user's stored OpenAI API key to call the OpenAI chat completions API from the extension workflow.

Tone selector

Provides selectable reply sentiments including positive, dramatic, negative, and witty before generating the draft.

Persona description field

Lets users save a personal description that is inserted into the system prompt to influence generated reply style.

Open-source implementation

Publishes the extension source, manifest, popup, content script, and MIT license in a public GitHub repository.

Minimal Chrome permissions

The manifest lists storage permission and a Twitter-domain content script rather than broad all-sites browsing access.

Manual send workflow

Generated text is inserted into the reply composer for the user to review, edit, regenerate, or send manually.

Pros

The public repository makes the extension's prompt, storage, permissions, and OpenAI call path inspectable before use.
The extension itself appears free and MIT licensed, with costs shifted to the user's own OpenAI API account.
The workflow is lightweight for users who only need reply drafting inside the X/Twitter web composer.
Tone choices and persona description give more control than a single generic reply button.
The manifest uses a narrow storage permission and a Twitter-domain content script, which is easier to review than broad browser access.

Cons

The current Chrome Web Store URL did not return a normal installable listing during research, so availability is uncertain.
The README says a paid OpenAI account is required, meaning real use is not cost-free even if the extension code is free.
The content script calls OpenAI from the browser with dangerouslyAllowBrowser enabled, so users should understand API-key exposure and browser-extension risk before use.
The manifest targets twitter.com, while the README workflow tells users to open x.com, so compatibility with X's current domain may need testing.
The project has limited public maintenance signals, no releases, and no dedicated privacy policy beyond source-code inspection.

Pricing Plans

Open-source extension

Freeself-managed

MIT-licensed GitHub repository
Chrome extension source code
User-provided OpenAI API key
Twitter/X reply drafting workflow
No developer subscription found

OpenAI API usage

External usage costusage based

Paid OpenAI account referenced by the README
Costs billed by OpenAI, not by the extension developer
Actual spend depends on model, usage volume, and OpenAI account terms
Users control the API key and provider account
Not bundled with the extension

* Pricing information is for reference only. Please refer to the latest announcement on Twitter AI Reply's official website.

FAQ

It adds AI-generated reply drafting to the Twitter/X web workflow. The README says it analyzes tweets with advanced LLM models and generates contextually relevant replies, while the content script shows the draft is inserted into the reply composer.

The extension code is public under an MIT license and no developer subscription was found. However, the README tells users to create an OpenAI API key and says a paid OpenAI account is required, so OpenAI usage is a separate cost.

That is uncertain. The developer README links to the Chrome Web Store listing, but current checks of the listing returned an empty store shell and Google's CRX update endpoint returned no installable package for the extension ID.

The manifest lists Manifest V3, the storage permission, and a content script for twitter.com. That is narrower than extensions that request access to every site, but users should still inspect the source before entering an API key.

The README workflow tells users to open x.com, but the manifest content script match is for twitter.com. Because X's domain behavior changes over time, users should test current compatibility before relying on it.

The documented workflow generates a draft, inserts it into the reply composer, and tells users to check, edit, send, or regenerate. It should be treated as a drafting assistant rather than a fully autonomous posting bot.

Reviewers should inspect Chrome sync storage for the OpenAI key and profile fields, the browser-side OpenAI client call, the tweet text passed into prompts, and the absence of a dedicated privacy policy or hosted backend documentation.