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Grok 4 Fast vs Muse Wonder

Muse Wonder leads the LLM Stats Score 49.2 to 31.4.

xAI · Meta · Updated for 2026

Which is better?

Muse Wonder leads the overall LLM Stats Score 49.2 to 31.4, ranking #25 overall.

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

Choose Grok 4 Fast

  • you want predictable pricing at $0.20/M input and $0.50/M output

Choose Muse Wonder

  • overall performance matters — it scores 49.2 and ranks #25 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Grok 4 Fast
xAI
Muse Wonder
Meta
Core performance indexes
LLM Stats Score
31.4
#132
49.2
#25
Reasoning
30.4
#138
37.7
#81
Coding
18.0
#131
38.2
#21
Agents
2.9
#185
37.2
#17
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.20 / M
— / M
Output price
$0.50 / M
— / M
Context window
2,000,000
—

Individual benchmarks

7 reported for Grok 4 Fast · 16 for Muse Wonder

No common benchmarks found

Grok 4 Fast 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

Context Window

Maximum input and output token capacity

Only Grok 4 Fast specifies input context (2,000,000 tokens). Only Grok 4 Fast specifies output context (30,000 tokens).

xAI
Grok 4 Fast
Input2,000,000 tokens
Output30,000 tokens
Meta
Muse Wonder
Input- tokens
Output- tokens
Mon Oct 19 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok 4 Fast and Muse Wonder support multimodal inputs.

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

Grok 4 Fast

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 Fast

Proprietary

Closed source

Muse Wonder

Proprietary

Closed source

Release Timeline

When each model was launched

Grok 4 Fast was released on 2025-08-28, while Muse Wonder was released on 2026-10-12.

Muse Wonder is 14 months newer than Grok 4 Fast.

Grok 4 Fast

Aug 28, 2025

1.1 years ago

Muse Wonder

Oct 12, 2026

1 weeks ago

1.1yr newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

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

Grok 4 Fast
✓ Preferred
Muse Wonder
Open in Playground

FAQ

Common questions about Grok 4 Fast vs Muse Wonder.

Which is better, Grok 4 Fast or Muse Wonder?

Muse Wonder leads the LLM Stats Score 49.2 to 31.4. Grok 4 Fast 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 Fast compare to Muse Wonder in benchmarks?

Grok 4 Fast scores SimpleQA: 95.0%, HMMT 2025: 93.3%, AIME 2025: 92.0%, GPQA: 85.7%, LiveCodeBench: 80.0%. 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 context window sizes for Grok 4 Fast and Muse Wonder?

Grok 4 Fast supports 2.0M tokens and Muse Wonder supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

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

Key differences include LLM Stats Score (31.4 vs 49.2). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4 Fast and Muse Wonder?

Grok 4 Fast is developed by xAI and Muse Wonder is developed by Meta.

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