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Grok-4 Heavy vs Muse Wonder

Muse Wonder leads the LLM Stats Score 49.2 to 40.7.

xAI · Meta · Updated for 2026

Which is better?

Muse Wonder leads the overall LLM Stats Score 49.2 to 40.7, ranking #25 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Grok-4 Heavy

  • you are already invested in the xAI ecosystem

Choose Muse Wonder

  • overall performance matters — it scores 49.2 and ranks #25 on LLM Stats
  • your work emphasizes coding — it leads those capability indexes

At a glance

The differences that matter most.

Grok-4 Heavy
xAI
Muse Wonder
Meta
Core performance indexes
LLM Stats Score
40.7
#71
49.2
#25
Reasoning
39.0
#73
37.7
#81
Coding
17.6
#134
38.2
#21
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
—

Individual benchmarks

6 reported for Grok-4 Heavy · 16 for Muse Wonder

No common benchmarks found

Grok-4 Heavy and Muse Wonderdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Input capabilities

Documented input modalities across available providers

Both Grok-4 Heavy and Muse Wonder support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Grok-4 Heavy

Text
Images
Audio
Video

Muse Wonder

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Grok-4 Heavy

Proprietary

Closed source

Muse Wonder

Proprietary

Closed source

Release Timeline

When each model was launched

Muse Wonder was released on 2026-10-12, while Grok-4 Heavy's release date is not specified.

We can confirm Muse Wonder's release timeline, but cannot make a direct age comparison without Grok-4 Heavy's release date.

Grok-4 Heavy

—

Muse Wonder

Oct 12, 2026

1 weeks ago

Knowledge Cutoff

When training data ends

Grok-4 Heavy has a documented knowledge cutoff of 2024-12-31, while Muse Wonder's cutoff date is not specified.

We can confirm Grok-4 Heavy's training data extends to 2024-12-31, but cannot make a direct comparison without Muse Wonder's cutoff date.

Grok-4 Heavy

Dec 2024

Muse Wonder

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Grok-4 Heavy and Muse Wonder side-by-side, then vote on the output you prefer.

Grok-4 Heavy
✓ Preferred
Muse Wonder
Open in Playground

FAQ

Common questions about Grok-4 Heavy vs Muse Wonder.

Which is better, Grok-4 Heavy or Muse Wonder?

Muse Wonder leads the LLM Stats Score 49.2 to 40.7. Grok-4 Heavy is made by xAI and Muse Wonder is made by Meta. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok-4 Heavy compare to Muse Wonder in benchmarks?

Grok-4 Heavy scores AIME 2025: 100.0%, HMMT25: 96.7%, GPQA: 88.4%, LiveCodeBench: 79.4%, USAMO25: 61.9%. Muse Wonder scores MemoryBench: 85.6%, DeepSWE 1.1: 78.8%, OSWorld 2.1 (partial): 72.6%, JobBench: 70.5%, HealthBench Professional: 60.5%.

What are the main differences between Grok-4 Heavy and Muse Wonder?

Key differences include LLM Stats Score (40.7 vs 49.2). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-4 Heavy and Muse Wonder?

Grok-4 Heavy is developed by xAI and Muse Wonder is developed by Meta.

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