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Claude Mythos Preview vs Nemotron 3.5 Bolt (74B A9B 24GB)

Claude Mythos Preview leads the LLM Stats Score 54.5 to 29.6.

Anthropic · NVIDIA · Updated for 2026

Which is better?

Claude Mythos Preview leads the overall LLM Stats Score 54.5 to 29.6, ranking #5 overall.

In the 3 individual benchmarks reported for both models, Claude Mythos Preview wins 3; 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 Mythos Preview

  • overall performance matters — it scores 54.5 and ranks #5 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 3 of 3 exact shared results

Choose Nemotron 3.5 Bolt (74B A9B 24GB)

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

At a glance

The differences that matter most.

Claude Mythos Preview
Anthropic
Nemotron 3.5 Bolt (74B A9B 24GB)
NVIDIA
Core performance indexes
LLM Stats Score
54.5
#5
29.6
#146
Reasoning
55.6
#4
28.9
#146
Coding
43.8
#4
14.4
#154
Agents
36.6
#19
11.9
#127
Cost, coverage & limits
Benchmark wins
3 of 3
0 of 3
Input price
$25.00 / M
— / M
Output price
$125.00 / M
— / M
Context window
—
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Mythos Preview
Nemotron 3.5 Bolt (74B A9B 24GB)
Math
47.4#1
23.4#140
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Claude Mythos Preview · 10 for Nemotron 3.5 Bolt (74B A9B 24GB)

3 shared

Claude Mythos Preview outperforms in 3 benchmarks (BrowseComp, GPQA, Humanity's Last Exam), while Nemotron 3.5 Bolt (74B A9B 24GB) is better at 0 benchmarks.

Claude Mythos Preview significantly outperforms across most benchmarks.

Fri Oct 23 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Input capabilities

Documented input modalities across available providers

Both Claude Mythos Preview 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 Mythos Preview

Text
Images
Audio
Video

Nemotron 3.5 Bolt (74B A9B 24GB)

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Mythos Preview 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 Mythos Preview

Proprietary

Closed source

Nemotron 3.5 Bolt (74B A9B 24GB)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

Nemotron 3.5 Bolt (74B A9B 24GB) was released on 2026-10-15, while Claude Mythos Preview's release date is not specified.

We can confirm Nemotron 3.5 Bolt (74B A9B 24GB)'s release timeline, but cannot make a direct age comparison without Claude Mythos Preview's release date.

Claude Mythos Preview

—

Nemotron 3.5 Bolt (74B A9B 24GB)

Oct 15, 2026

4 days ago

Knowledge Cutoff

When training data ends

Nemotron 3.5 Bolt (74B A9B 24GB) has a documented knowledge cutoff of 2026-05-01, while Claude Mythos Preview'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 Mythos Preview's cutoff date.

Claude Mythos Preview

—

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 Mythos Preview and Nemotron 3.5 Bolt (74B A9B 24GB) side-by-side, then vote on the output you prefer.

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

FAQ

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

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

Claude Mythos Preview leads the LLM Stats Score 54.5 to 29.6. Claude Mythos Preview 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 Mythos Preview compare to Nemotron 3.5 Bolt (74B A9B 24GB) in benchmarks?

Claude Mythos Preview scores CyBench: 100.0%, USAMO25: 97.6%, GPQA: 94.6%, SWE-Bench Verified: 93.9%, CharXiv-R: 93.2%. 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 main differences between Claude Mythos Preview and Nemotron 3.5 Bolt (74B A9B 24GB)?

Key differences include LLM Stats Score (54.5 vs 29.6), licensing (Proprietary vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Mythos Preview and Nemotron 3.5 Bolt (74B A9B 24GB)?

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

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