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Claude Haiku 5.5 vs Nova 2 Pro

Claude Haiku 5.5 leads the LLM Stats Score 50.3 to 30.8.

Anthropic · Amazon · Updated for 2026

Which is better?

Claude Haiku 5.5 leads the overall LLM Stats Score 50.3 to 30.8, ranking #18 overall.

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

Choose Claude Haiku 5.5

  • overall performance matters — it scores 50.3 and ranks #18 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

Choose Nova 2 Pro

  • you are already invested in the Amazon ecosystem

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
Nova 2 Pro
Amazon
Core performance indexes
LLM Stats Score
50.3
#18
30.8
#129
Reasoning
47.4
#26
30.7
#129
Coding
40.7
#13
19.1
#117
Agents
33.7
#27
11.8
#119
Cost, coverage & limits
Benchmark wins
—
—
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

4 shared
Index
Claude Haiku 5.5
Nova 2 Pro
Math
25.7#110
25.9#109
Vision
30.5#32
12.2#112
Tool use
20.8#57
15.1#100
Multimodal
31.6#25
9.5#127
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 18 for Nova 2 Pro

No common benchmarks found

Claude Haiku 5.5 and Nova 2 Prodon'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 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
Amazon
Nova 2 Pro
Input- tokens
Output- tokens
Wed Oct 07 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 5.5 and Nova 2 Pro 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

Nova 2 Pro

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

Nova 2 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while Nova 2 Pro was released on 2025-12-02.

Claude Haiku 5.5 is 10 months newer than Nova 2 Pro.

Claude Haiku 5.5

Oct 7, 2026

0 days ago

10mo newer
Nova 2 Pro

Dec 2, 2025

10 months ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while Nova 2 Pro'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 Nova 2 Pro's cutoff date.

Claude Haiku 5.5

Jun 2026

Nova 2 Pro

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and Nova 2 Pro side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
Nova 2 Pro
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs Nova 2 Pro.

Which is better, Claude Haiku 5.5 or Nova 2 Pro?

Claude Haiku 5.5 leads the LLM Stats Score 50.3 to 30.8. Claude Haiku 5.5 is made by Anthropic and Nova 2 Pro is made by Amazon. 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 Nova 2 Pro 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%. Nova 2 Pro scores Tau2 Telecom: 92.7%, AIME 2025: 92.3%, ScreenSpot: 88.1%, LongCodeBench: 84.0%, MMLU-Pro: 81.6%.

What are the context window sizes for Claude Haiku 5.5 and Nova 2 Pro?

Claude Haiku 5.5 supports 1.0M tokens and Nova 2 Pro 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 Nova 2 Pro?

Key differences include LLM Stats Score (50.3 vs 30.8). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and Nova 2 Pro?

Claude Haiku 5.5 is developed by Anthropic and Nova 2 Pro is developed by Amazon.

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