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Grok 4.5 vs Muse Wonder Full

Muse Wonder Full leads the LLM Stats Score 52.6 to 45.5.

xAI · Meta · Updated for 2026

Which is better?

Muse Wonder Full leads the overall LLM Stats Score 52.6 to 45.5, ranking #12 overall.

In the 4 individual benchmarks reported for both models, Muse Wonder Full wins 3; this is a narrower head-to-head signal than the composite indexes.

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

Choose Grok 4.5

  • you want predictable pricing at $2.00/M input and $6.00/M output

Choose Muse Wonder Full

  • overall performance matters — it scores 52.6 and ranks #12 on LLM Stats
  • your work emphasizes coding and agents — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 3 of 4 exact shared results
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Grok 4.5
xAI
Muse Wonder Full
Meta
Core performance indexes
LLM Stats Score
45.5
#41
52.6
#12
Reasoning
44.8
#43
41.2
#62
Coding
32.0
#50
41.4
#9
Agents
30.2
#45
40.6
#6
Cost, coverage & limits
Benchmark wins
1 of 4
3 of 4
Input price
$2.00 / M
— / M
Output price
$6.00 / M
— / M
Context window
500,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Grok 4.5
Muse Wonder Full
Tool use
22.5#56
24.7#39
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

15 reported for Grok 4.5 · 16 for Muse Wonder Full

4 shared

Grok 4.5 outperforms in 1 benchmarks (AutomationBench-AA), while Muse Wonder Full is better at 3 benchmarks (Artificial Analysis, DeepSWE 1.1, SWE-Marathon).

Muse Wonder Full shows notably better performance in the majority of benchmarks.

Fri Oct 23 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Grok 4.5 specifies input context (500,000 tokens).

xAI
Grok 4.5
Input500,000 tokens
Output- tokens
Meta
Muse Wonder Full
Input- tokens
Output- tokens
Fri Oct 23 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok 4.5 and Muse Wonder Full support multimodal inputs.

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

Grok 4.5

Text
Images
Audio
Video

Muse Wonder Full

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 4.5

Proprietary

Closed source

Muse Wonder Full

Proprietary

Closed source

Release Timeline

When each model was launched

Grok 4.5 was released on 2026-07-16, while Muse Wonder Full was released on 2026-10-12.

Muse Wonder Full is 3 months newer than Grok 4.5.

Grok 4.5

Jul 16, 2026

3 months ago

Muse Wonder Full

Oct 12, 2026

1 weeks ago

2mo newer

Knowledge Cutoff

When training data ends

Grok 4.5 has a documented knowledge cutoff of 2026-02-01, while Muse Wonder Full's cutoff date is not specified.

We can confirm Grok 4.5's training data extends to 2026-02-01, but cannot make a direct comparison without Muse Wonder Full's cutoff date.

Grok 4.5

Feb 2026

Muse Wonder Full

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Grok 4.5 and Muse Wonder Full side-by-side, then vote on the output you prefer.

Grok 4.5
✓ Preferred
Muse Wonder Full
Open in Playground

FAQ

Common questions about Grok 4.5 vs Muse Wonder Full.

Which is better, Grok 4.5 or Muse Wonder Full?

Muse Wonder Full leads the LLM Stats Score 52.6 to 45.5. Grok 4.5 is made by xAI and Muse Wonder Full 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 4.5 compare to Muse Wonder Full in benchmarks?

Grok 4.5 scores GPQA: 93.0%, Terminal-Bench 2.1: 83.3%, SWE-Bench Pro: 64.7%, AA-Omniscience Index: 63.0%, DeepSWE 1.0: 62.0%. Muse Wonder Full scores MemoryBench: 85.5%, DeepSWE 1.1: 79.0%, OSWorld 2.1 (partial): 78.4%, JobBench: 75.3%, HealthBench Professional: 62.3%.

What are the context window sizes for Grok 4.5 and Muse Wonder Full?

Grok 4.5 supports 500K tokens and Muse Wonder Full 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 4.5 and Muse Wonder Full?

Key differences include LLM Stats Score (45.5 vs 52.6). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.5 and Muse Wonder Full?

Grok 4.5 is developed by xAI and Muse Wonder Full is developed by Meta.

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