Model Comparison

Claude Opus 4.5 vs Nemotron 3 Nano (30B A3B)Which is better in 2026?

Claude Opus 4.5 significantly outperforms across most benchmarks. Nemotron 3 Nano (30B A3B) is 95.2x cheaper per token.

Verdict: Claude Opus 4.5 vs Nemotron 3 Nano (30B A3B) — which is better?

Claude Opus 4.5 (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 4.5 outperforms in 4 benchmarks (GPQA, SWE-Bench Verified, Tau2 Retail, Tau2 Telecom), while Nemotron 3 Nano (30B A3B) is better at 0 benchmarks. Claude Opus 4.5 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.

Nemotron 3 Nano (30B A3B) also accepts a larger context window (262,144 input tokens), making it the stronger choice for long documents and large codebases.

Choose Claude Opus 4.5 if…

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

Choose Nemotron 3 Nano (30B A3B) if…

  • cost matters — it's about 95.2x cheaper per token
  • you process long inputs — it offers a 262,144 token context window
  • you want the most recent training data — it shipped Dec 2025
  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude Opus 4.5 outperforms in 4 benchmarks (GPQA, SWE-Bench Verified, Tau2 Retail, Tau2 Telecom), while Nemotron 3 Nano (30B A3B) is better at 0 benchmarks.

Claude Opus 4.5 significantly outperforms across most benchmarks.

Sun Jun 07 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 4.5 ($5.00/1M tokens) is 83.3x more expensive than Nemotron 3 Nano (30B A3B) ($0.06/1M tokens).

For output processing, Claude Opus 4.5 ($25.00/1M tokens) is 104.2x more expensive than Nemotron 3 Nano (30B A3B) ($0.24/1M tokens).

In conclusion, Claude Opus 4.5 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
Sun Jun 07 2026 • llm-stats.com
Anthropic
Claude Opus 4.5
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

Nemotron 3 Nano (30B A3B) accepts 262,144 input tokens compared to Claude Opus 4.5's 200,000 tokens. Nemotron 3 Nano (30B A3B) can generate longer responses up to 262,144 tokens, while Claude Opus 4.5 is limited to 64,000 tokens.

Anthropic
Claude Opus 4.5
Input200,000 tokens
Output64,000 tokens
NVIDIA
Nemotron 3 Nano (30B A3B)
Input262,144 tokens
Output262,144 tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 4.5 supports multimodal inputs, whereas Nemotron 3 Nano (30B A3B) 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

Nemotron 3 Nano (30B A3B)

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4.5 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 4.5

Proprietary

Closed source

Nemotron 3 Nano (30B A3B)

NVIDIA Open Model License Agreement

Open weights

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Nemotron 3 Nano (30B A3B) was released on 2025-12-15.

Nemotron 3 Nano (30B A3B) is 1 month newer than Claude Opus 4.5.

Claude Opus 4.5

Nov 24, 2025

6 months ago

Nemotron 3 Nano (30B A3B)

Dec 15, 2025

5 months ago

3w newer

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a knowledge cutoff of 2025-03-31, while Nemotron 3 Nano (30B A3B) has a cutoff of 2025-11-28.

Nemotron 3 Nano (30B A3B) has more recent training data (up to 2025-11-28), making it potentially better informed about events through that date compared to Claude Opus 4.5 (2025-03-31).

Claude Opus 4.5

Mar 2025

Nemotron 3 Nano (30B A3B)

Nov 2025

8 mo newer

Provider Availability

Claude Opus 4.5 is available from Anthropic. Nemotron 3 Nano (30B A3B) is available from DeepInfra.

Claude Opus 4.5

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

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Key Takeaways

Anthropic
Supports multimodal inputs
Higher GPQA score (87.0% vs 75.0%)
Higher SWE-Bench Verified score (80.9% vs 38.8%)
Higher Tau2 Retail score (88.9% vs 56.9%)
Higher Tau2 Telecom score (98.2% vs 42.2%)
NVIDIA
Larger context window (262,144 tokens)
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Opus 4.5
NVIDIA
Nemotron 3 Nano (30B A3B)

FAQ

Common questions about Claude Opus 4.5 vs Nemotron 3 Nano (30B A3B).

Which is better, Claude Opus 4.5 or Nemotron 3 Nano (30B A3B)?

Claude Opus 4.5 significantly outperforms across most benchmarks. Claude Opus 4.5 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 4.5 compare to Nemotron 3 Nano (30B A3B) 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%. 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 4.5 cheaper than Nemotron 3 Nano (30B A3B)?

Nemotron 3 Nano (30B A3B) is 83.3x cheaper for input tokens. Claude Opus 4.5 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 4.5 and Nemotron 3 Nano (30B A3B)?

Claude Opus 4.5 supports 200K 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 4.5 and Nemotron 3 Nano (30B A3B)?

Key differences include context window (200K 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 4.5 and Nemotron 3 Nano (30B A3B)?

Claude Opus 4.5 is developed by Anthropic and Nemotron 3 Nano (30B A3B) is developed by NVIDIA.

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