Hardest reasoning tasks
Choose Muse Wonder Full
Muse Wonder Full scores 55.8 on the Artificial Analysis Intelligence Index, against 43.4 for Claude Haiku 5.5.
Claude Haiku 5.5 vs Muse Wonder Full: price, context and capabilities
Choose Muse Wonder Full for the hardest reasoning tasks; on the other points the two are level or the data is missing.
In short
- A price comparison is not possible: one of them has no comparable published price.
- 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
Either one
They are practically level on Long-context reasoning (AA-LCR) (82.7% and 83.7%).
Specifications side by side
| Claude Haiku 5.5 | Muse Wonder Full | |
|---|---|---|
| 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 | No data |
| 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 |
Benchmarks side by side
Leader in bold.
| Benchmark | Claude Haiku 5.5 | Muse Wonder Full |
|---|---|---|
| Intelligence Index | 43.4 | 55.8 |
| SciCode | 55% | 62.6% |
| Humanity's Last Exam | 44.4% | 53.6% |
| Long-context reasoning (AA-LCR) | 82.7% | 83.7% |
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 Full?
Choose Muse Wonder Full for the hardest reasoning tasks; on the other points the two are level or the data is missing.
Which is cheaper, Claude Haiku 5.5 or Muse Wonder Full?
A price comparison is not possible: one of them has no comparable published price.
What is the difference between Claude Haiku 5.5 and Muse Wonder Full?
Claude Haiku 5.5 is made by Anthropic and Muse Wonder Full by Meta. A price comparison is not possible: one of them has no comparable published price. Only Claude Haiku 5.5 offers structured output, prompt caching, batch api.