What Meta AI Is For in 2026: The Free Assistant, Muse and Meta One

Meta AI is the free assistant inside WhatsApp, Instagram, Facebook and Messenger: you ask it questions, get help writing, and make or edit images without leaving the app. Two other products now share the name and do different jobs: Muse, an agent that carries out tasks for you, and Meta One, a subscription that buys more AI usage in the apps.

Hokai chart of the three products and the job each one does, from the company's own pages as checked on 15 November 2026.

Prices come from the Meta One page and the Muse subscriptions help page, both read on 15 November 2026. The company says features, plans and prices vary by region and account.

What does Meta AI do day to day?

It answers questions, drafts and rewrites messages, summarises a pile of unread chats, and makes or edits pictures and short videos. You reach it with the assistant button in an app, by typing @Meta AI in a group chat, or through its own app and website.

On 6 November 2026 the company began rolling out new versions of the models behind the assistant and Muse, trained using its largest model family, Muse Wonder. Its post on the change, read on 15 November, says they remember more of what you said earlier and push on when a task hits a problem. The figures behind those claims come from its own tests.

Is Meta AI free, and is Meta One worth paying for?

The assistant is free for everyday use. What you pay for is more of it. Meta One, launched on 15 September 2026, is the subscription layer across the apps:

Core bundles the three app plans with more image generation and editing, video creation and voice effects. The company describes Premium as expanded AI usage with even more video creation. Its page also lists four business plans that add a verified badge, without printing their prices.

Meta One only earns its price if you run into the free limits on images or video, and since those limits are not printed, the way to find out is to reach one. You subscribe inside the apps, and the page says the service "is not available in all regions".

Who needs Muse instead of Meta AI?

The assistant answers. Muse, launched on 8 September 2026, does the task. You give it a goal, such as comparing prices or booking something, and it works through the steps on its own cloud computer, with a browser you can watch and take over. It asks before it sends an email or makes a purchase, and it pays with a one-time card number.

Muse is free with a usage limit. The help page lists two paid plans: Power at $20 a month with 500M Muse tokens a week, and Maximum at $100 a month with 3B. The free allowance is not printed. Muse is open in the US and Canada, and since late October in Japan and Singapore; its small business skills are still US and Canada only.

Living anywhere else, you cannot use Muse yet. For an agent that works in more countries, start with ChatGPT or Claude, or compare the field in the best personal AI agents. Before connecting email or a card to any agent, read the approval-gate checklist.

Does Meta AI read your WhatsApp chats?

WhatsApp says your personal messages and calls stay protected by end-to-end encryption. For features that do use your messages, such as summaries, it says a system called Private Processing makes the reply without the company reading the chat. It also offers incognito chats with the assistant that it says even it cannot see. These are the company's own descriptions, from WhatsApp's Meta AI page read on 15 November 2026.

Which Meta models can developers use?

The models are sold by the token through an API and through the coding agent Muse Code. Prices per million tokens, from the developer model pages read on 15 November 2026:

The Contributor rate is for people who let the company use their prompts to improve its products. Ember's rate applies under 200K tokens of context and triples above it.

Ember is pitched for high-volume agent work such as tool calls and routing. Muse Wonder Full, the largest model, is not sold by the token: it comes with the top two Muse Code plans. Wonder costs more than three times Spark per input token, and the case for it rests on the company's own benchmark tables. For where these prices sit against other labs, see the cheapest LLM APIs.

Can you run a Meta model yourself?

Two of them. Muse Glimmer, released on 10 August 2026 under the Apache 2.0 licence, has about 30 billion parameters and was built to run on a single consumer graphics card.

Muse Spark Open, whose weights were published on 15 October 2026, is far larger (816B parameters, 42B active per token). It comes under the company's own licence, which is not an approved open-source one, and it was derived from the Spark model released in August with extra safety training. Of the two, Glimmer is the one sized for a single graphics card.

What changed since August

Sponsor spot open

What would change this answer

The free allowances are the open question. Neither the assistant's nor Muse's free limit is printed, so the point where you would need to pay is unknown until you reach it. Muse's country list is the other: it is why the agent half of this answer only applies in four countries. If either changes, the table at the top changes with it.

To weigh these tools against the rest of the market, Smart Match asks a few questions about your use and returns a shortlist, and the best AI chatbots compares the assistants side by side. For Meta's own range the choice is simple: keep to the free assistant, add Meta One only when you hit its image or video limits, and try Muse only if you live in one of its four countries and have an errand worth handing off.

Frequently asked questions

What is Meta AI used for?

Answering questions, drafting and rewriting messages, summarising unread chats, and making or editing images and short videos. People reach it from a button inside each app, by typing @Meta AI in a group chat, or through its own app and website.

Is Meta AI free?

Yes for everyday use. Meta One sells more AI usage on top: single-app plans from $2.99 a month, Meta One Core at $7.99 and Premium at $19.99, per Meta’s Meta One page read on 15 November 2026. Meta says prices vary by region.

What is the difference between Meta AI and Muse?

Meta AI answers questions and makes content inside the apps. Muse, launched on 8 September 2026, is an agent that takes a goal and carries out the steps on its own cloud computer, asking before it sends or buys. Muse is open in the US, Canada, Japan and Singapore.

Does Meta AI read my WhatsApp messages?

WhatsApp says personal messages stay end-to-end encrypted. For features that use your messages, such as summaries, it says Private Processing lets Meta AI respond without Meta reading the chat, and it offers incognito chats with Meta AI that Meta says it cannot see.

Can I download and run Meta’s AI models?

Two of them. Muse Glimmer, released in August 2026 under Apache 2.0, is built for a single consumer graphics card. Muse Spark Open, published in October 2026 under Meta’s own Muse Model License, is far larger. Muse Spark 1.3, Wonder and Ember are API only.

Covered in this guide

• Meta AI: Meta's free assistant inside Facebook, Instagram, WhatsApp and Messenger, powered by Muse Spark, with Meta One bundles for heavier image and video generation.
• Muse: Meta's AI agent runs tasks in its own cloud computer; open in the US, Canada, Japan and Singapore, with small-business skills for Shopify, QuickBooks and Meta ads in the US and Canada.
• ChatGPT: ChatGPT is OpenAI's AI assistant, with 1.2 billion weekly users by OpenAI's count, the GPT-6 model family and plans that run from a free tier to a premium Pro tier.
• Claude: Claude is Anthropic's AI assistant, with a free tier, Pro, Max and Ultra personal plans, and Team and Enterprise seats. Opus access starts at Pro.
• Muse Code: Meta's terminal coding agent fans work out to parallel sub-agents in isolated git worktrees, backed by a 1M-token context window.
• Muse Glimmer: Muse Glimmer, released August 10, 2026 by Meta AI, is a 30B open-weight agentic model built to run on a single consumer GPU.
• Muse Spark: Muse Spark 1.3, released September 2, 2026 by Meta AI Research, is an agentic model for long coding, long documents and tool-heavy work, with max reasoning on the Standard API tier.
• Muse Spark Open: Meta's open-weight model for coding and agents: 816B total parameters, 42B active, released October 2026 under the Muse Model License.
• Muse Wonder: Muse Wonder is Meta's agentic reasoning model for long coding and computer-use jobs, with a 1M-token context window, released in October 2026.
• Muse Wonder Full: Muse Wonder Full is Meta's highest-capability Wonder model, sold only inside Power and Maximum Muse Code plans, with a 1M-token context window.

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