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Claude Opus 5.5 vs Nemotron Labs Dory 1.0 (4B)

Claude Opus 5.5 leads the LLM Stats Score 60.4 to 21.8.

Anthropic · NVIDIA · Updated for 2026

Which is better?

Claude Opus 5.5 leads the overall LLM Stats Score 60.4 to 21.8, ranking #1 overall.

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

Choose Claude Opus 5.5

  • overall performance matters — it scores 60.4 and ranks #1 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes

Choose Nemotron Labs Dory 1.0 (4B)

  • you want the most recent training data — it shipped Oct 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Opus 5.5
Anthropic
Nemotron Labs Dory 1.0 (4B)
NVIDIA
Core performance indexes
LLM Stats Score
60.4
#1
21.8
#203
Reasoning
59.5
#1
19.6
#216
Coding
49.9
#1
2.8
#244
Agents
45.5
#1
-1.8
#203
Cost, coverage & limits
Benchmark wins
—
—
Input price
$4.00 / M
— / M
Output price
$20.00 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Opus 5.5
Nemotron Labs Dory 1.0 (4B)
Math
41.8#6
12.1#246
Tool use
34.3#3
-2.2#206
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

31 reported for Claude Opus 5.5 · 10 for Nemotron Labs Dory 1.0 (4B)

No common benchmarks found

Claude Opus 5.5 and Nemotron Labs Dory 1.0 (4B)don'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 Opus 5.5 specifies input context (1,000,000 tokens). Only Claude Opus 5.5 specifies output context (128,000 tokens).

Anthropic
Claude Opus 5.5
Input1,000,000 tokens
Output128,000 tokens
NVIDIA
Nemotron Labs Dory 1.0 (4B)
Input- tokens
Output- tokens
Thu Oct 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Opus 5.5 supports multimodal inputs, whereas Nemotron Labs Dory 1.0 (4B) does not.

Claude Opus 5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 5.5

Text
Images
Audio
Video

Nemotron Labs Dory 1.0 (4B)

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 5.5 is licensed under a proprietary license, while Nemotron Labs Dory 1.0 (4B) uses OpenMDW License v1.1.

License differences may affect how you can use these models in commercial or open-source projects.

Claude Opus 5.5

Proprietary

Closed source

Nemotron Labs Dory 1.0 (4B)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Claude Opus 5.5 was released on 2026-09-22, while Nemotron Labs Dory 1.0 (4B) was released on 2026-10-16.

Nemotron Labs Dory 1.0 (4B) is 1 month newer than Claude Opus 5.5.

Claude Opus 5.5

Sep 22, 2026

3 weeks ago

Nemotron Labs Dory 1.0 (4B)

Oct 16, 2026

3 days ago

3w newer

Knowledge Cutoff

When training data ends

Claude Opus 5.5 has a documented knowledge cutoff of 2026-06-01, while Nemotron Labs Dory 1.0 (4B)'s cutoff date is not specified.

We can confirm Claude Opus 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without Nemotron Labs Dory 1.0 (4B)'s cutoff date.

Claude Opus 5.5

Jun 2026

Nemotron Labs Dory 1.0 (4B)

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Opus 5.5 and Nemotron Labs Dory 1.0 (4B) side-by-side, then vote on the output you prefer.

Claude Opus 5.5
✓ Preferred
Nemotron Labs Dory 1.0 (4B)
Open in Playground

FAQ

Common questions about Claude Opus 5.5 vs Nemotron Labs Dory 1.0 (4B).

Which is better, Claude Opus 5.5 or Nemotron Labs Dory 1.0 (4B)?

Claude Opus 5.5 leads the LLM Stats Score 60.4 to 21.8. Claude Opus 5.5 is made by Anthropic and Nemotron Labs Dory 1.0 (4B) is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Opus 5.5 compare to Nemotron Labs Dory 1.0 (4B) in benchmarks?

Claude Opus 5.5 scores BenchCAD (with Python tool): 96.2%, Global-MMLU: 94.3%, SWE-bench Multilingual: 93.9%, MILU: 93.1%, ArXivMath: 91.2%. Nemotron Labs Dory 1.0 (4B) scores IFBench: 77.9%, GPQA: 72.4%, AA-LCR: 71.0%, SWE-Bench Verified: 59.5%, SciCode: 34.9%.

What are the context window sizes for Claude Opus 5.5 and Nemotron Labs Dory 1.0 (4B)?

Claude Opus 5.5 supports 1.0M tokens and Nemotron Labs Dory 1.0 (4B) 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 Opus 5.5 and Nemotron Labs Dory 1.0 (4B)?

Key differences include LLM Stats Score (60.4 vs 21.8), multimodal support (yes vs no), licensing (Proprietary vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 5.5 and Nemotron Labs Dory 1.0 (4B)?

Claude Opus 5.5 is developed by Anthropic and Nemotron Labs Dory 1.0 (4B) is developed by NVIDIA.

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