The AI arena is free today

Open Superagent

Grok Code Fast 1 vs Llama 3.1 Nemotron Nano 8B V1

Grok Code Fast 1 leads the LLM Stats Score 21.2 to 5.0.

xAI · NVIDIA · Updated for 2026

Which is better?

Grok Code Fast 1 leads the overall LLM Stats Score 21.2 to 5.0, ranking #181 overall.

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

Choose Grok Code Fast 1

  • overall performance matters — it scores 21.2 and ranks #181 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Aug 2025

Choose Llama 3.1 Nemotron Nano 8B V1

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

At a glance

The differences that matter most.

Grok Code Fast 1
xAI
Llama 3.1 Nemotron Nano 8B V1
NVIDIA
Core performance indexes
LLM Stats Score
21.2
#181
5.0
#289
Reasoning
21.1
#173
5.6
#282
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.20 / M
— / M
Output price
$1.50 / M
— / M
Context window
256,000
—

Individual benchmarks

1 reported for Grok Code Fast 1 · 7 for Llama 3.1 Nemotron Nano 8B V1

No common benchmarks found

Grok Code Fast 1 and Llama 3.1 Nemotron Nano 8B V1don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Grok Code Fast 1 specifies input context (256,000 tokens). Only Grok Code Fast 1 specifies output context (10,000 tokens).

xAI
Grok Code Fast 1
Input256,000 tokens
Output10,000 tokens
NVIDIA
Llama 3.1 Nemotron Nano 8B V1
Input- tokens
Output- tokens
Sun Sep 06 2026 • llm-stats.com

License

Usage and distribution terms

Grok Code Fast 1 is licensed under a proprietary license, while Llama 3.1 Nemotron Nano 8B V1 uses Llama 3.1 Community License.

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

Grok Code Fast 1

Proprietary

Closed source

Llama 3.1 Nemotron Nano 8B V1

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

Grok Code Fast 1 was released on 2025-08-28, while Llama 3.1 Nemotron Nano 8B V1 was released on 2025-03-18.

Grok Code Fast 1 is 5 months newer than Llama 3.1 Nemotron Nano 8B V1.

Grok Code Fast 1

Aug 28, 2025

1.0 years ago

5mo newer
Llama 3.1 Nemotron Nano 8B V1

Mar 18, 2025

1.5 years ago

Knowledge Cutoff

When training data ends

Llama 3.1 Nemotron Nano 8B V1 has a documented knowledge cutoff of 2023-12-31, while Grok Code Fast 1's cutoff date is not specified.

We can confirm Llama 3.1 Nemotron Nano 8B V1's training data extends to 2023-12-31, but cannot make a direct comparison without Grok Code Fast 1's cutoff date.

Grok Code Fast 1

—

Llama 3.1 Nemotron Nano 8B V1

Dec 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Grok Code Fast 1 and Llama 3.1 Nemotron Nano 8B V1 side-by-side, then vote on the output you prefer.

Grok Code Fast 1
✓ Preferred
Llama 3.1 Nemotron Nano 8B V1
Open in Playground

FAQ

Common questions about Grok Code Fast 1 vs Llama 3.1 Nemotron Nano 8B V1.

Which is better, Grok Code Fast 1 or Llama 3.1 Nemotron Nano 8B V1?

Grok Code Fast 1 leads the LLM Stats Score 21.2 to 5.0. Grok Code Fast 1 is made by xAI and Llama 3.1 Nemotron Nano 8B V1 is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok Code Fast 1 compare to Llama 3.1 Nemotron Nano 8B V1 in benchmarks?

Grok Code Fast 1 scores SWE-Bench Verified: 70.8%. Llama 3.1 Nemotron Nano 8B V1 scores MATH-500: 95.4%, MBPP: 84.6%, MT-Bench: 81.0%, IFEval: 79.3%, BFCL v2: 63.6%.

What are the context window sizes for Grok Code Fast 1 and Llama 3.1 Nemotron Nano 8B V1?

Grok Code Fast 1 supports 256K tokens and Llama 3.1 Nemotron Nano 8B V1 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 Grok Code Fast 1 and Llama 3.1 Nemotron Nano 8B V1?

Key differences include LLM Stats Score (21.2 vs 5.0), licensing (Proprietary vs Llama 3.1 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok Code Fast 1 and Llama 3.1 Nemotron Nano 8B V1?

Grok Code Fast 1 is developed by xAI and Llama 3.1 Nemotron Nano 8B V1 is developed by NVIDIA.

Related comparisons