The AI arena is free today

Open Superagent

Claude Haiku 5.5 vs Muse Wonder Full

Claude Haiku 5.5 and Muse Wonder Full are closely matched at 50.1 and 52.1 on the LLM Stats Score.

Anthropic · Meta · Updated for 2026

Which is better?

Claude Haiku 5.5 and Muse Wonder Full are closely matched on the overall LLM Stats Score at 50.1 and 52.1.

The models split the 4 individual benchmarks reported for both models evenly.

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

Choose Claude Haiku 5.5

  • you want predictable pricing at $0.10/M input and $0.50/M output

Choose Muse Wonder Full

  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
Muse Wonder Full
Meta
Core performance indexes
LLM Stats Score
50.1
#18
52.1
#13
Reasoning
47.4
#25
38.4
#71
Coding
40.0
#12
41.5
#8
Agents
33.6
#29
38.5
#8
Cost, coverage & limits
Benchmark wins
2 of 4
2 of 4
Input price
$0.10 / M
— / M
Output price
$0.50 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Haiku 5.5
Muse Wonder Full
Vision
29.9#35
31.7#28
Multimodal
30.7#32
31.8#25
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 16 for Muse Wonder Full

4 shared

Claude Haiku 5.5 outperforms in 2 benchmarks (HealthBench Professional, Program Bench), while Muse Wonder Full is better at 2 benchmarks (OSWorld 2.1 (partial), OSWorld 2.1 (strict)).

Both models are evenly matched across the benchmarks.

Mon Oct 12 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude Haiku 5.5 specifies input context (1,000,000 tokens). Only Claude Haiku 5.5 specifies output context (128,000 tokens).

Anthropic
Claude Haiku 5.5
Input1,000,000 tokens
Output128,000 tokens
Meta
Muse Wonder Full
Input- tokens
Output- tokens
Mon Oct 12 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 5.5 and Muse Wonder Full support multimodal inputs.

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

Claude Haiku 5.5

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.

Claude Haiku 5.5

Proprietary

Closed source

Muse Wonder Full

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while Muse Wonder Full was released on 2026-10-12.

Muse Wonder Full is 0 month newer than Claude Haiku 5.5.

Claude Haiku 5.5

Oct 7, 2026

5 days ago

Muse Wonder Full

Oct 12, 2026

0 days ago

5d newer

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while Muse Wonder Full's cutoff date is not specified.

We can confirm Claude Haiku 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without Muse Wonder Full's cutoff date.

Claude Haiku 5.5

Jun 2026

Muse Wonder Full

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and Muse Wonder Full side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
Muse Wonder Full
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs Muse Wonder Full.

Which is better, Claude Haiku 5.5 or Muse Wonder Full?

Claude Haiku 5.5 and Muse Wonder Full are closely matched on the LLM Stats Score at 50.1 and 52.1. Claude Haiku 5.5 is made by Anthropic 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 Claude Haiku 5.5 compare to Muse Wonder Full in benchmarks?

Claude Haiku 5.5 scores Global-MMLU: 87.8%, MILU: 87.6%, BenchCAD (with Python tool): 87.0%, Chartography: 86.2%, SWE-bench Multilingual: 83.7%. 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 Claude Haiku 5.5 and Muse Wonder Full?

Claude Haiku 5.5 supports 1.0M 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 Claude Haiku 5.5 and Muse Wonder Full?

Key differences include LLM Stats Score (50.1 vs 52.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and Muse Wonder Full?

Claude Haiku 5.5 is developed by Anthropic and Muse Wonder Full is developed by Meta.

Related comparisons