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Chat with Muse Spark 1.3 Contributor for free on AIFreeForever

Muse Spark 1.3 Contributor Free AI Chatbot

Use AIFreeForever's Muse Spark 1.3 Contributor chatbot to get fast answers from the model. Read long documents, understand images and video, and write code.In Contributor mode, Meta uses your prompts, files and the answers to train future Meta models. Don't share personal, client or confidential information with this model.

Create anything with Muse Spark 1.3 Contributor using our @skills feature

About Muse Spark 1.3 Contributor AI model

Muse Spark 1.3 Contributor is the lower-cost mode of Meta's Muse Spark 1.3 model, released on 2 September 2026. Meta uses Contributor chats to train future models. It reads long documents, images and video, and you can chat with it free on AIFreeForever.

Muse Spark 1.3 ContributorMade by Meta Try Muse Spark 1.3 Contributor on AIFreeForever→
Made byMeta
Model IDmuse-spark-1.3-contributor
ReleasedSeptember 2, 2026
API price per 1M tokens$0.10 in / $0.20 out
Your chatsUsed by Meta to train future models
Price of Muse Spark 1.3 Contributor on AIFreeForeverFree

AIFreeForever is not affiliated with or endorsed by the model providers. All trademarks and logos belong to their owners.

What Muse Spark 1.3 Contributor is best at

Long documents

Scores 98.1 on MRCR between 512K and 1M tokens, a test of finding details in extremely long text.

Coding

Scores 88.8 on Terminal-Bench 2.1, a test of fixing problems with commands, level with GPT-5.6 Sol in Meta's table.

Professional work

Scores 64.9 on JobBench, a test of using work tools, and 1754 on GDPval-AA v2, a test of real office tasks.

Web research

Scores 90.3 on DeepSearchQA, a test of finding answers across many web pages.

How to use Muse Spark 1.3 Contributor for free on AIFreeForever

  1. 1

    Open the chat,

    choose Muse Spark 1.3 Contributor and read the privacy note.

  2. 2

    Type your task,

    or add a skill such as @Website or @Ebook.

  3. 3

    Add a file, image or long document

    Use public or non-personal content only.

  4. 4

    Read the answer

    and ask follow-up questions.

Tip: Use this model for public documents, open-source code and general questions. For anything private, pick a different model.
Try it for free

Why choose AIFreeForever's free Muse Spark 1.3 Contributor?

No upgrade required

Use Muse Spark 1.3 free, without a Meta developer account.

1M context window

Its 1M-token window takes reports, books and large code files.

Reads images and video

Ask about a chart, a photo or a short video clip.

Strong coding

It scored 88.8 on Terminal-Bench 2.1, the same as GPT-5.6 Sol.

Better tool use

Meta says it gets more tasks right first time than Muse Spark 1.2.

File editing

Skills turn answers into Word, Excel and PowerPoint files.

Chat with Muse Spark 1.3 Contributor on AIFreeForever

Type your question or upload a public document, and Muse Spark 1.3 answers in the same chat. Use it to pull facts from long reports, explain code or read charts. Keep private details out, because Meta trains on these chats. Muse Spark 1.

This model is subject to availability, based on our budget. For long-term use, we advise you to pay for an upgrade with the model provider.
Tip: Muse Spark 1.3 Contributor is best suited for long documents, coding and professional work.

What you can create with Muse Spark 1.3 Contributor

A tall stack of paper held with a black binder clip and a brass bookmarkPlain chat

Facts from a long report

Every deadline, with page numbers.“Find every deadline in this 300-page public report.” Try the prompt→ A coiled toy snake made of shiny green glass beads@Website

A browser game

A working game in one HTML file.“@Website A snake game in one HTML file with a score.” Try the prompt→ A fox with the soft white feathers of a snow owl, sitting curled upPlain chat

A code walkthrough

What an open-source file does, in plain words.“Explain what this open-source repo's main file does.” Try the prompt→ A monstera plant in a matte lavender pot@Ebook

An ebook

A full beginner's guide, chapter by chapter.“@Ebook A 10-chapter beginner's guide to houseplants.” Try the prompt→ Three wooden bars of different heights standing side by sidePlain chat

A chart explained

The values and the biggest changes.“What does this chart show? List the 3 biggest changes.” Try the prompt→ A brass desk calculator with round keys@Excel

A spreadsheet

A tracker with totals and a chart.“@Excel A sales tracker with monthly totals and a chart.” Try the prompt→

How much does Muse Spark 1.3 Contributor cost?

Muse Spark 1.3 Contributor costs $0.10 per million input tokens and $0.20 per million output tokens on Meta's API, because Meta uses the content for training. It's free on AIFreeForever.

WherePriceCached inputContext
Meta Model API, Contributor$0.10 in / $0.20 out per 1M tokens$0.0021M
Meta Model API, Standard (not used for training)$1.25 in / $4.25 out per 1M tokens$0.151M
AIFreeForever's Free AIFree—16K tokens a message

Can you use Muse Spark 1.3 Contributor for free?

Yes, on AIFreeForever: pick it in the chat and start typing. Meta doesn't list a free API tier, and the model can't be downloaded.

Chat with Muse Spark 1.3 Contributor

Muse Spark 1.3 Contributor benchmark results

Muse Spark 1.3 scores highest on long documents and coding: 98.1 on MRCR (512K–1M) and 88.8 on Terminal-Bench 2.1.

BenchmarkWhat it testsScore
Terminal-Bench 2.1Coding in a terminal88.8
DeepSWE v1.1Long coding jobs75.4
GDPval-AA v2Real office tasks (Elo)1754
JobBenchUsing work tools64.9
DeepSearchQAWeb research90.3
AutomationBenchBusiness workflows49.6
MRCR 512K–1MFinding details in very long text98.1
GPQA DiamondGraduate-level science94%

This benchmark was extracted from Meta and Artificial Analysis.

Contributor is the same model as Muse Spark 1.3, so these scores apply to it. Claude Opus 5 scored higher than Muse Spark 1.3 on two tests in the same table. On GDPval-AA v2, Claude Opus 5 got 1824 and Muse Spark 1.3 got 1754. On JobBench, Claude Opus 5 got 65.7 and Muse Spark 1.3 got 64.9.

Muse Spark 1.3 Contributor vs other top models

Muse Spark 1.3 Contributor is the only model below that reads video, and it takes up to 1M tokens.

ModelContextImage inputStrength
Muse Spark 1.3 Contributor1MYes, plus videoLong documents
MiniMax M3.1 Flash1MNot stated by MiniMaxCheap multi-step tasks
Nex-N2.5-Pro262KYesReading screenshots
Llama 4 Scout10M (Meta)YesOpen weights

Pick Muse Spark 1.3 for long public documents and coding. For private work, use Muse Spark 1.3 Standard from Meta, which Meta doesn't train on.

Muse Spark 1.3 Contributor vs Muse Spark 1.3 Standard

They're the same model with the same 1M-token context. Contributor costs $0.10 / $0.20 per million tokens and Meta trains on your content; Standard costs $1.25 / $4.25 and Meta doesn't.

How does Muse Spark 1.3 compare to Llama 4 Scout?

Both come from Meta. Muse Spark 1.3 is the newer model, with a 1M-token window and an 88.8 score on Terminal-Bench 2.1. Llama 4 Scout has open weights you can download and run yourself.

How Muse Spark 1.3 Contributor works

Meta trained Muse Spark 1.3 for coding and tasks that use tools. Meta says it gets more tasks right first time, keeps track of earlier results and asks for input when it needs it. Contributor mode sends your content to Meta for future training, as explained on Meta's pricing page.

Best Muse Spark 1.3 Contributor prompts

Use only public, non-personal content in these prompts.

Free Muse Spark 1.3 Long Report Prompt

“Read this full public report. Give me a 10-bullet summary, each bullet with the page number it comes from.” Try the prompt→

Free Muse Spark 1.3 Deadline Finder Prompt

“List every date and deadline in this document in a table: date, what's due, page number.” Try the prompt→
Download the free Muse Spark 1.3 prompt guide (PDF) →

Limitations of Muse Spark 1.3 Contributor on AIFreeForever

AIFreeForever connects to Muse Spark 1.3 Contributor through Meta's API and adds our skills and file editors. Keep these limits in mind:

  • Meta uses your chats with this version to train its models.
  • Muse Code and Meta's own apps aren't part of AIFreeForever.
  • You can't run Python, start agents that work on their own, or run regression analysis here.
Tip: Test Muse Spark 1.3 free here with public content. For private or client work, use Muse Spark 1.3 Standard from Meta.

You can test Muse Spark 1.3 Contributor free on AIFreeForever in these ways:

TestHow to do it here
Long documentUpload a long public report; ask for facts from the start, middle and end.
CodingAsk for a small browser game; open it and check it runs.
Chart readingUpload a chart; check every value it reads.
Compare modelsRun the same task on MiniMax M3.1 Flash.

These limitations only cover what you can do with Muse Spark 1.3 Contributor on AIFreeForever, not the limits of the model on Meta’s own platform. All trademarks belong to their owners, and the model’s full features are only available when you use it officially through Meta.

Muse Spark 1.3 Contributor FAQs

Is Muse Spark 1.3 Contributor free?

Yes. It's free on AIFreeForever. On Meta's API it costs $0.10 per million input tokens and $0.20 per million output tokens.

What does "Contributor" mean?

Contributor is Meta's lower-priced mode of Muse Spark 1.3. You pay less, and Meta can use your content to train future models.

Does Meta use my chats to train its models?

Yes, in Contributor mode Meta uses prompts, files and answers to train future models. Don't share private information with this version.

Who made Muse Spark 1.3?

Meta made Muse Spark 1.3.

When was Muse Spark 1.3 released?

Muse Spark 1.3 was released on 2 September 2026.

How large is the Muse Spark 1.3 context window?

Muse Spark 1.3 takes up to 1 million tokens in one chat.

Can Muse Spark 1.3 read images and video?

Yes. Meta says Muse Spark reads images, video and documents.

Is Muse Spark 1.3 open source?

No. Muse Spark 1.3 is only available through Meta's API and services that use it, such as AIFreeForever.

Are Muse Spark 1.3 answers 100% correct?

No. It can make mistakes, so check important facts and code before you use them.

Chat with Muse Spark 1.3 Contributor for free

Ask Muse Spark 1.3 Contributor a question, paste your code or add a file and get instant answers. Not satisfied? Compare your answers to other models for free.

Chat with Muse Spark 1.3 Contributor