Model Comparison

Claude 3 Opus vs Llama 3.1 Nemotron 70B InstructWhich is better in 2026?

Claude 3 Opus significantly outperforms across most benchmarks.

Verdict: Claude 3 Opus vs Llama 3.1 Nemotron 70B Instruct — which is better?

Claude 3 Opus (by Anthropic) and Llama 3.1 Nemotron 70B Instruct (by NVIDIA) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Claude 3 Opus outperforms in 4 benchmarks (ARC-C, GSM8k, HellaSwag, MMLU), while Llama 3.1 Nemotron 70B Instruct is better at 0 benchmarks. Claude 3 Opus significantly outperforms across most benchmarks.

Choose Claude 3 Opus if…

  • you want the strongest raw capability — it leads on 4 of 4 shared benchmarks

Choose Llama 3.1 Nemotron 70B Instruct if…

  • you want the most recent training data — it shipped Oct 2024
  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude 3 Opus outperforms in 4 benchmarks (ARC-C, GSM8k, HellaSwag, MMLU), while Llama 3.1 Nemotron 70B Instruct is better at 0 benchmarks.

Claude 3 Opus significantly outperforms across most benchmarks.

Sat Jun 06 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude 3 Opus specifies input context (200,000 tokens). Only Claude 3 Opus specifies output context (200,000 tokens).

Anthropic
Claude 3 Opus
Input200,000 tokens
Output200,000 tokens
NVIDIA
Llama 3.1 Nemotron 70B Instruct
Input- tokens
Output- tokens
Sat Jun 06 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Opus supports multimodal inputs, whereas Llama 3.1 Nemotron 70B Instruct does not.

Claude 3 Opus can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3 Opus

Text
Images
Audio
Video

Llama 3.1 Nemotron 70B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude 3 Opus is licensed under a proprietary license, while Llama 3.1 Nemotron 70B Instruct uses Llama 3.1 Community License.

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

Claude 3 Opus

Proprietary

Closed source

Llama 3.1 Nemotron 70B Instruct

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while Llama 3.1 Nemotron 70B Instruct was released on 2024-10-01.

Llama 3.1 Nemotron 70B Instruct is 7 months newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.3 years ago

Llama 3.1 Nemotron 70B Instruct

Oct 1, 2024

1.7 years ago

7mo newer

Knowledge Cutoff

When training data ends

Llama 3.1 Nemotron 70B Instruct has a documented knowledge cutoff of 2023-12-01, while Claude 3 Opus's cutoff date is not specified.

We can confirm Llama 3.1 Nemotron 70B Instruct's training data extends to 2023-12-01, but cannot make a direct comparison without Claude 3 Opus's cutoff date.

Claude 3 Opus

—

Llama 3.1 Nemotron 70B Instruct

Dec 2023

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Supports multimodal inputs
Higher ARC-C score (96.4% vs 69.2%)
Higher GSM8k score (95.0% vs 91.4%)
Higher HellaSwag score (95.4% vs 85.6%)
Higher MMLU score (86.8% vs 80.2%)
NVIDIA
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Opus
NVIDIA
Llama 3.1 Nemotron 70B Instruct

FAQ

Common questions about Claude 3 Opus vs Llama 3.1 Nemotron 70B Instruct.

Which is better, Claude 3 Opus or Llama 3.1 Nemotron 70B Instruct?

Claude 3 Opus significantly outperforms across most benchmarks. Claude 3 Opus is made by Anthropic and Llama 3.1 Nemotron 70B Instruct is made by NVIDIA. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude 3 Opus compare to Llama 3.1 Nemotron 70B Instruct in benchmarks?

Claude 3 Opus scores ARC-C: 96.4%, HellaSwag: 95.4%, GSM8k: 95.0%, MGSM: 90.7%, BIG-Bench Hard: 86.8%. Llama 3.1 Nemotron 70B Instruct scores GSM8k: 91.4%, HellaSwag: 85.6%, Winogrande: 84.5%, GSM8K Chat: 81.9%, MMLU Chat: 80.6%.

What are the context window sizes for Claude 3 Opus and Llama 3.1 Nemotron 70B Instruct?

Claude 3 Opus supports 200K tokens and Llama 3.1 Nemotron 70B Instruct 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 3 Opus and Llama 3.1 Nemotron 70B Instruct?

Key differences include multimodal support (yes vs no), licensing (Proprietary vs Llama 3.1 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Opus and Llama 3.1 Nemotron 70B Instruct?

Claude 3 Opus is developed by Anthropic and Llama 3.1 Nemotron 70B Instruct is developed by NVIDIA.

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