Model Comparison

Claude Opus 5 vs Nemotron 3 Nano (30B A3B)Which is better in 2026?

Claude Opus 5 significantly outperforms across most benchmarks. Nemotron 3 Nano (30B A3B) is 95.2x cheaper per token.

Verdict: Claude Opus 5 vs Nemotron 3 Nano (30B A3B) — which is better?

Claude Opus 5 (by Anthropic) and Nemotron 3 Nano (30B A3B) (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 Opus 5 outperforms in 1 benchmarks (Humanity's Last Exam), while Nemotron 3 Nano (30B A3B) is better at 0 benchmarks. Claude Opus 5 significantly outperforms across most benchmarks.

On price, Nemotron 3 Nano (30B A3B) is roughly 95.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Opus 5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Claude Opus 5 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Jul 2026

Choose Nemotron 3 Nano (30B A3B) if…

  • cost matters — it's about 95.2x cheaper per token
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude Opus 5 outperforms in 1 benchmarks (Humanity's Last Exam), while Nemotron 3 Nano (30B A3B) is better at 0 benchmarks.

Claude Opus 5 significantly outperforms across most benchmarks.

Wed Aug 05 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Nemotron 3 Nano (30B A3B) costs less

For input processing, Claude Opus 5 ($5.00/1M tokens) is 83.3x more expensive than Nemotron 3 Nano (30B A3B) ($0.06/1M tokens).

For output processing, Claude Opus 5 ($25.00/1M tokens) is 104.2x more expensive than Nemotron 3 Nano (30B A3B) ($0.24/1M tokens).

In conclusion, Claude Opus 5 is more expensive than Nemotron 3 Nano (30B A3B).*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Aug 05 2026 • llm-stats.com
Anthropic
Claude Opus 5
Input tokens$5.00
Output tokens$25.00
Best providerAnthropic
NVIDIA
Nemotron 3 Nano (30B A3B)
Input tokens$0.06
Output tokens$0.24
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Opus 5 accepts 1,000,000 input tokens compared to Nemotron 3 Nano (30B A3B)'s 262,144 tokens. Nemotron 3 Nano (30B A3B) can generate longer responses up to 262,144 tokens, while Claude Opus 5 is limited to 128,000 tokens.

Anthropic
Claude Opus 5
Input1,000,000 tokens
Output128,000 tokens
NVIDIA
Nemotron 3 Nano (30B A3B)
Input262,144 tokens
Output262,144 tokens
Wed Aug 05 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 5 supports multimodal inputs, whereas Nemotron 3 Nano (30B A3B) does not.

Claude Opus 5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 5

Text
Images
Audio
Video

Nemotron 3 Nano (30B A3B)

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 5 is licensed under a proprietary license, while Nemotron 3 Nano (30B A3B) uses NVIDIA Open Model License Agreement .

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

Claude Opus 5

Proprietary

Closed source

Nemotron 3 Nano (30B A3B)

NVIDIA Open Model License Agreement

Open weights

Release Timeline

When each model was launched

Claude Opus 5 was released on 2026-07-24, while Nemotron 3 Nano (30B A3B) was released on 2025-12-15.

Claude Opus 5 is 7 months newer than Nemotron 3 Nano (30B A3B).

Claude Opus 5

Jul 24, 2026

1 weeks ago

7mo newer
Nemotron 3 Nano (30B A3B)

Dec 15, 2025

7 months ago

Knowledge Cutoff

When training data ends

Nemotron 3 Nano (30B A3B) has a documented knowledge cutoff of 2025-11-28, while Claude Opus 5's cutoff date is not specified.

We can confirm Nemotron 3 Nano (30B A3B)'s training data extends to 2025-11-28, but cannot make a direct comparison without Claude Opus 5's cutoff date.

Claude Opus 5

—

Nemotron 3 Nano (30B A3B)

Nov 2025

Provider Availability

Claude Opus 5 is available from Anthropic. Nemotron 3 Nano (30B A3B) is available from DeepInfra.

Claude Opus 5

anthropic logo
Anthropic
Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M

Nemotron 3 Nano (30B A3B)

deepinfra logo
Deepinfra
Input Price:Input: $0.06/1MOutput Price:Output: $0.24/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Larger context window (1,000,000 tokens)
Supports multimodal inputs
Higher Humanity's Last Exam score (64.7% vs 15.5%)
NVIDIA
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Opus 5 and Nemotron 3 Nano (30B A3B) side-by-side, then vote on the output you prefer.

Claude Opus 5
✓ Preferred
Nemotron 3 Nano (30B A3B)
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Opus 5
NVIDIA
Nemotron 3 Nano (30B A3B)

FAQ

Common questions about Claude Opus 5 vs Nemotron 3 Nano (30B A3B).

Which is better, Claude Opus 5 or Nemotron 3 Nano (30B A3B)?

Claude Opus 5 significantly outperforms across most benchmarks. Claude Opus 5 is made by Anthropic and Nemotron 3 Nano (30B A3B) is made by NVIDIA. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Opus 5 compare to Nemotron 3 Nano (30B A3B) in benchmarks?

Claude Opus 5 scores BrowseComp: 90.8%, BioMysteryBench: 90.1%, OSWorld 2.0: 70.6%, DeepSWE 1.1: 68.8%, Humanity's Last Exam: 64.7%. Nemotron 3 Nano (30B A3B) scores AIME 2025: 99.2%, WMT24++: 86.2%, MMLU-Pro: 78.3%, GPQA: 75.0%, LiveCodeBench v6: 68.3%.

Is Claude Opus 5 cheaper than Nemotron 3 Nano (30B A3B)?

Nemotron 3 Nano (30B A3B) is 83.3x cheaper for input tokens. Claude Opus 5 costs $5.00/M input and $25.00/M output via anthropic. Nemotron 3 Nano (30B A3B) costs $0.06/M input and $0.24/M output via deepinfra.

What are the context window sizes for Claude Opus 5 and Nemotron 3 Nano (30B A3B)?

Claude Opus 5 supports 1.0M tokens and Nemotron 3 Nano (30B A3B) supports 262K 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 and Nemotron 3 Nano (30B A3B)?

Key differences include context window (1.0M vs 262K), input pricing ($5.00 vs $0.06/M), multimodal support (yes vs no), licensing (Proprietary vs NVIDIA Open Model License Agreement ). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 5 and Nemotron 3 Nano (30B A3B)?

Claude Opus 5 is developed by Anthropic and Nemotron 3 Nano (30B A3B) is developed by NVIDIA.

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