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Claude Opus 4.1 vs Nemotron 3.5 Bolt (74B A9B 24GB)

Claude Opus 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB) are closely matched at 29.5 and 29.6 on the LLM Stats Score.

Anthropic · NVIDIA · Updated for 2026

Which is better?

Claude Opus 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB) are closely matched on the overall LLM Stats Score at 29.5 and 29.6.

In the 1 individual benchmarks reported for both models, Nemotron 3.5 Bolt (74B A9B 24GB) wins 1; this is a narrower head-to-head signal than the composite indexes.

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

Choose Claude Opus 4.1

  • you want predictable pricing at $15.00/M input and $75.00/M output

Choose Nemotron 3.5 Bolt (74B A9B 24GB)

  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • 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 4.1
Anthropic
Nemotron 3.5 Bolt (74B A9B 24GB)
NVIDIA
Core performance indexes
LLM Stats Score
29.5
#147
29.6
#146
Reasoning
29.6
#143
28.9
#146
Coding
21.3
#106
14.4
#154
Agents
12.7
#121
11.9
#127
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$15.00 / M
— / M
Output price
$75.00 / M
— / M
Context window
200,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Opus 4.1
Nemotron 3.5 Bolt (74B A9B 24GB)
Math
22.6#146
23.4#140
Tool use
18.2#83
5.4#169
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

8 reported for Claude Opus 4.1 · 10 for Nemotron 3.5 Bolt (74B A9B 24GB)

1 shared

Claude Opus 4.1 outperforms in 0 benchmarks, while Nemotron 3.5 Bolt (74B A9B 24GB) is better at 1 benchmark (GPQA).

Nemotron 3.5 Bolt (74B A9B 24GB) significantly outperforms across most benchmarks.

Thu Oct 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude Opus 4.1 specifies input context (200,000 tokens). Only Claude Opus 4.1 specifies output context (32,000 tokens).

Anthropic
Claude Opus 4.1
Input200,000 tokens
Output32,000 tokens
NVIDIA
Nemotron 3.5 Bolt (74B A9B 24GB)
Input- tokens
Output- tokens
Thu Oct 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Opus 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB) support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Opus 4.1

Text
Images
Audio
Video

Nemotron 3.5 Bolt (74B A9B 24GB)

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4.1 is licensed under a proprietary license, while Nemotron 3.5 Bolt (74B A9B 24GB) uses OpenMDW License v1.1.

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

Claude Opus 4.1

Proprietary

Closed source

Nemotron 3.5 Bolt (74B A9B 24GB)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Claude Opus 4.1 was released on 2025-08-05, while Nemotron 3.5 Bolt (74B A9B 24GB) was released on 2026-10-15.

Nemotron 3.5 Bolt (74B A9B 24GB) is 15 months newer than Claude Opus 4.1.

Claude Opus 4.1

Aug 5, 2025

1.2 years ago

Nemotron 3.5 Bolt (74B A9B 24GB)

Oct 15, 2026

4 days ago

1.2yr newer

Knowledge Cutoff

When training data ends

Nemotron 3.5 Bolt (74B A9B 24GB) has a documented knowledge cutoff of 2026-05-01, while Claude Opus 4.1's cutoff date is not specified.

We can confirm Nemotron 3.5 Bolt (74B A9B 24GB)'s training data extends to 2026-05-01, but cannot make a direct comparison without Claude Opus 4.1's cutoff date.

Claude Opus 4.1

—

Nemotron 3.5 Bolt (74B A9B 24GB)

May 2026

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Opus 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB) side-by-side, then vote on the output you prefer.

Claude Opus 4.1
✓ Preferred
Nemotron 3.5 Bolt (74B A9B 24GB)
Open in Playground

FAQ

Common questions about Claude Opus 4.1 vs Nemotron 3.5 Bolt (74B A9B 24GB).

Which is better, Claude Opus 4.1 or Nemotron 3.5 Bolt (74B A9B 24GB)?

Claude Opus 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB) are closely matched on the LLM Stats Score at 29.5 and 29.6. Claude Opus 4.1 is made by Anthropic and Nemotron 3.5 Bolt (74B A9B 24GB) 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 4.1 compare to Nemotron 3.5 Bolt (74B A9B 24GB) in benchmarks?

Claude Opus 4.1 scores MMMLU: 89.5%, TAU-bench Retail: 82.4%, GPQA: 80.9%, AIME 2025: 78.0%, MMMU (validation): 77.1%. Nemotron 3.5 Bolt (74B A9B 24GB) scores PinchBench: 87.8%, GPQA: 86.4%, BrowseComp: 66.8%, AA-LCR: 64.1%, MCP Atlas: 52.2%.

What are the context window sizes for Claude Opus 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB)?

Claude Opus 4.1 supports 200K tokens and Nemotron 3.5 Bolt (74B A9B 24GB) 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 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB)?

Key differences include LLM Stats Score (29.5 vs 29.6), licensing (Proprietary vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 4.1 and Nemotron 3.5 Bolt (74B A9B 24GB)?

Claude Opus 4.1 is developed by Anthropic and Nemotron 3.5 Bolt (74B A9B 24GB) is developed by NVIDIA.

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