Hardest reasoning tasks
Choose Muse Wonder
Muse Wonder scores 52.4 on the Artificial Analysis Intelligence Index, against 43.4 for Claude Haiku 5.5.
Claude Haiku 5.5 vs Muse Wonder: price, context and capabilities
Choose Claude Haiku 5.5 for reasoning over long documents. Choose Muse Wonder for the hardest reasoning tasks.
In short
- A price comparison is not possible: one of them has no comparable published price.
- Muse Wonder reads more per request: 1.05M tokens against 1M.
- Only Claude Haiku 5.5 offers structured output, prompt caching, batch api.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Reasoning over long documents
Choose Claude Haiku 5.5
Claude Haiku 5.5 scores 82.7% on Long-context reasoning (AA-LCR), against 80.7% for Muse Wonder.
Specifications side by side
| Claude Haiku 5.5 | Muse Wonder | |
|---|---|---|
| Provider | Anthropic | Meta |
| Category | Language models | Language models |
| Status | Generally available | Generally available |
| Headline price | $0.20 / 1M tokens | No data |
| Input | $0.10 / 1M tokens | No data |
| Output | $0.50 / 1M tokens | No data |
| Cached input | $0.01 / 1M tokens | No data |
| Context window | 1M | 1.05M |
| Max output | 128k | No data |
| Released | October 2026 | Oct 12, 2026 |
| Knowledge cutoff | June 2026 | No data |
| Licence | Proprietary | Proprietary |
| Capabilities | Vision, Reasoning, Tool calling, Structured output, Prompt caching, Batch API | Vision, Reasoning, Tool calling |
| API model id | claude-haiku-5-5 | muse-wonder-1.0 |
Benchmarks side by side
Leader in bold.
| Benchmark | Claude Haiku 5.5 | Muse Wonder |
|---|---|---|
| Intelligence Index | 43.4 | 52.4 |
| SciCode | 55% | 60.3% |
| Humanity's Last Exam | 44.4% | 50.1% |
| Long-context reasoning (AA-LCR) | 82.7% | 80.7% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose Claude Haiku 5.5 or Muse Wonder?
Choose Claude Haiku 5.5 for reasoning over long documents. Choose Muse Wonder for the hardest reasoning tasks.
Which is cheaper, Claude Haiku 5.5 or Muse Wonder?
A price comparison is not possible: one of them has no comparable published price.
Which has the larger context window, Claude Haiku 5.5 or Muse Wonder?
Muse Wonder reads more per request: 1.05M tokens against 1M.
What is the difference between Claude Haiku 5.5 and Muse Wonder?
Claude Haiku 5.5 is made by Anthropic and Muse Wonder by Meta. A price comparison is not possible: one of them has no comparable published price. Muse Wonder reads more per request: 1.05M tokens against 1M. Only Claude Haiku 5.5 offers structured output, prompt caching, batch api.