Model Comparison

Claude Opus 4.5 vs Llama 3.1 Nemotron 70B InstructWhich is better in 2026?

Comparing Claude Opus 4.5 and Llama 3.1 Nemotron 70B Instruct across benchmarks, pricing, and capabilities.

Verdict: Claude Opus 4.5 vs Llama 3.1 Nemotron 70B Instruct — which is better?

Claude Opus 4.5 (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.

Choose Claude Opus 4.5 if…

  • you want the most recent training data — it shipped Nov 2025

Choose Llama 3.1 Nemotron 70B Instruct if…

  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Claude Opus 4.5 and Llama 3.1 Nemotron 70B Instruct don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Opus 4.5 specifies input context (200,000 tokens). Only Claude Opus 4.5 specifies output context (64,000 tokens).

Anthropic
Claude Opus 4.5
Input200,000 tokens
Output64,000 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 Opus 4.5 supports multimodal inputs, whereas Llama 3.1 Nemotron 70B Instruct does not.

Claude Opus 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 4.5

Text
Images
Audio
Video

Llama 3.1 Nemotron 70B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4.5 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 Opus 4.5

Proprietary

Closed source

Llama 3.1 Nemotron 70B Instruct

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Llama 3.1 Nemotron 70B Instruct was released on 2024-10-01.

Claude Opus 4.5 is 14 months newer than Llama 3.1 Nemotron 70B Instruct.

Claude Opus 4.5

Nov 24, 2025

6 months ago

1.1yr newer
Llama 3.1 Nemotron 70B Instruct

Oct 1, 2024

1.7 years ago

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a knowledge cutoff of 2025-03-31, while Llama 3.1 Nemotron 70B Instruct has a cutoff of 2023-12-01.

Claude Opus 4.5 has more recent training data (up to 2025-03-31), making it potentially better informed about events through that date compared to Llama 3.1 Nemotron 70B Instruct (2023-12-01).

Claude Opus 4.5

Mar 2025

1.3 yr newer
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
NVIDIA
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Opus 4.5
NVIDIA
Llama 3.1 Nemotron 70B Instruct

FAQ

Common questions about Claude Opus 4.5 vs Llama 3.1 Nemotron 70B Instruct.

Which is better, Claude Opus 4.5 or Llama 3.1 Nemotron 70B Instruct?

Claude Opus 4.5 (Anthropic) and Llama 3.1 Nemotron 70B Instruct (NVIDIA) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Claude Opus 4.5 compare to Llama 3.1 Nemotron 70B Instruct in benchmarks?

Claude Opus 4.5 scores Tau2 Telecom: 98.2%, MMMLU: 90.8%, Tau2 Retail: 88.9%, GPQA: 87.0%, SWE-Bench Verified: 80.9%. 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 Opus 4.5 and Llama 3.1 Nemotron 70B Instruct?

Claude Opus 4.5 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 Opus 4.5 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 Opus 4.5 and Llama 3.1 Nemotron 70B Instruct?

Claude Opus 4.5 is developed by Anthropic and Llama 3.1 Nemotron 70B Instruct is developed by NVIDIA.

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