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Muse Wonder 1.0 Review: Meta's 1M-Token Agent Model With Text, Image, Video and Audio In

Pick Muse Wonder 1.0 for long agent runs and mixed-media prompts if $4 in and $20 out suits you; tool_choice is auto only, and this is not Wonder Full.

Spicy Index

81.0/ 100

Preliminary

Freedom Score

Not yet tested

Price
$8.00 per 1M mixed tokens (3 input : 1 output)
Output speed
120 tok/s
Success rate
Collecting data

Muse Wonder 1.0 is the standard Muse Wonder model from Meta, which Meta presents as a frontier model for coding, long-running agents and computer use. The model is labelled preview. On our API it is one OpenAI-compatible chat endpoint that takes text, images, video and audio in one message list, reads up to 1,048,576 tokens of input and writes back as many as 1,048,576, at $4 per million input tokens and $20 output.

The verdict

This is a catalogue review. We have not run our own quality or content tests, and we quote no benchmark scores: Meta's claims are for the larger Wonder Full variant, which is a separate subscription product and is not what this endpoint serves. Independent write-ups put other models ahead on some programming and terminal tests.

The case for it is the combination of window, input types and tool use. The case against is the price, which is steep next to the other models we added this week, and a tool-control limitation described below.

Try Muse Wonder 1.0 →

Key facts

  • Tested by us: catalogue check and launch smoke run only, no quality or content tests; Meta's claims concern a different variant
  • Price: $4 per million input tokens, $0.20 cached and $20 output
  • Limits: 1,048,576-token context, replies up to 1,048,576 tokens (default 4,096), reasoning counts toward max_tokens, up to 128 tools
  • Input: text, image, video, audio (wav, mp3)
  • Reasoning: minimal, low, medium, high, xhigh or max; high is the default
  • Sources: the scoring rules are on our review methodology page, and the full parameter list is on the Muse Wonder 1.0 model page.

What we liked and what held it back

What we liked

  • A million-token window. Whole repositories or long agent transcripts in one request.
  • Mixed media in one call. Image, video and audio parts alongside text.
  • Six reasoning levels. From minimal to max.
  • Parallel tool calls. Up to 128 tool definitions per request.
  • JSON output with response_format and SSE streaming.

What held it back

  • tool_choice accepts auto only. You cannot force a specific tool or require one; for plain text, do not send tools.
  • High price. $4 and $20 per million tokens.
  • Reasoning counts toward max_tokens and bills as output; a long reply plus deep thinking has to fit in the cap you set.
  • Preview. Meta gives no release date, maximum output or knowledge cutoff.
  • Not Wonder Full. The larger variant is not on this endpoint.

What we tested

We have not run Muse Wonder 1.0 through our capability sets or content levels. This page uses Meta's developer page for the model, the limits and parameters of our endpoint and the live price on the model page. We quote no benchmark numbers.

Prompts that worked

Starting points based on the endpoint's shape, not prompts we benchmarked.

1. Plan a library upgrade. A long-horizon planning task, the kind Meta positions the model for.

text
Plan a database library upgrade and identify compatibility checks before deployment.

Run this prompt on Muse Wonder 1.0 →

2. A tool step. One function with tool_choice set to auto, the value this endpoint accepts.

text
Call report_status with status ready.

Run this prompt on Muse Wonder 1.0 →

Settings that matter: start at medium reasoning and move to xhigh or max only for hard debugging and planning; label which attachment a question is about when you send several media parts; leave tool_choice at auto and omit tools when you want plain text.

Roleplay and how far it writes

We have not tested Muse Wonder 1.0 on our content levels yet, so this review makes no claim about how far it writes or how often it softens or refuses. The model page carries no content-test results for it either. On our API we add no content filter; whatever comes back is the model's own behaviour.

Not tested yet: all five content levels, roleplay quality over many turns, and languages other than English. We will add results here once the runs are done.

Every character in a request should be an adult, keep real, identifiable people out of it, and you're responsible for the law where you publish.

Alternatives

  • Much cheaper, long window? Claude Haiku 5.5 reads 1,000,000 tokens of text and images and has a full review.
  • A stronger Claude for hard work? Claude Sonnet 5.5 is a measured option in the same price band.
  • Open weights, text only? Beam 1.0 has a similar window at a quarter of the input price.

How Muse Wonder 1.0 earns its Spicy Index

Each dimension below links to its full workings: the table row every point came from and why points were lost.

Public leaderboards 40% of quality
Not yet tested

No exact match on a tracked public leaderboard yet. How it works

Role-play 15% of quality
Not yet tested

Our role-play suite hasn’t run on this model yet. How it works

Creative writing 15% of quality
69.0
Instruction following 15% of quality
99.0
Long-context memory 15% of quality
Not yet tested

Our long-context suite hasn’t run on this model yet. How it works

Capability 10.5% weight
64.0
Freedom Score 30% weight
Not yet tested

Freedom evidence is untested or insufficient. The Index retains the original quality and capability score, is marked preliminary and still receives a rank. Missing evidence is not zero. How it works

Freedom evidence is untested or insufficient. The Index retains the original quality and capability score, is marked preliminary and still receives a rank. Missing evidence is not zero.

Open the full test report →

Capability, item by item

Points from the public scoring table. Upscaled tiers and limits we set ourselves don’t count.

Context window (creator-published)Not declared
0.0 / 30
Input modalities on SpicyAPIText, plus images, audio
19.0 / 25
Tool useTools and tool_choice
15.0 / 15
Structured outputAccepted, schema adherence verified
15.0 / 15
Reasoning control6 levels: minimal · low · medium · high · xhigh · max
15.0 / 15

What Muse Wonder 1.0 can do on SpicyAPI

Straight from the live model specification on SpicyAPI. Some creators offer more in their own apps; this is what you can call through our API today.

Capabilities by endpoint
FeatureChat
Context window1,048,576 tokens
Max output per request1,048,576 tokens
Reasoning levelsminimal · low · medium · high · xhigh · max
Tool callingYes
Structured outputYes
See every parameter and code sample →

How long it really takes

Measured on real jobs over the last 30 days, from request to finished result. Times include our own test runs.

Output speed
120 tok/sIncludes time to first token
Success rate
Collecting data

A time appears once at least 10 completed jobs are in. Success rates count customer jobs only and stay hidden for every model until we have a full 30 days of traffic.

Models to consider instead of Muse Wonder 1.0

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Muse Wonder 1.0 FAQ

Try Muse Wonder 1.0 yourself

Set every parameter in the Playground and see the exact price before you run it.

$8.00 per 1M mixed tokens (3 input : 1 output)

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