Model Comparison

Grok Code Fast 1 vs Llama-3.3 Nemotron Super 49B v1Which is better in 2026?

Comparing Grok Code Fast 1 and Llama-3.3 Nemotron Super 49B v1 across benchmarks, pricing, and capabilities.

Verdict: Grok Code Fast 1 vs Llama-3.3 Nemotron Super 49B v1 — which is better?

Grok Code Fast 1 (by xAI) and Llama-3.3 Nemotron Super 49B v1 (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.

Choose Grok Code Fast 1 if…

  • you want the most recent training data — it shipped Aug 2025

Choose Llama-3.3 Nemotron Super 49B v1 if…

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

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Grok Code Fast 1 and Llama-3.3 Nemotron Super 49B v1don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

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-3.3 Nemotron Super 49B v1
Input- tokens
Output- tokens
Sun Jul 26 2026 • llm-stats.com

License

Usage and distribution terms

Grok Code Fast 1 is licensed under a proprietary license, while Llama-3.3 Nemotron Super 49B 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-3.3 Nemotron Super 49B 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-3.3 Nemotron Super 49B v1 was released on 2025-03-18.

Grok Code Fast 1 is 5 months newer than Llama-3.3 Nemotron Super 49B v1.

Grok Code Fast 1

Aug 28, 2025

11 months ago

5mo newer
Llama-3.3 Nemotron Super 49B v1

Mar 18, 2025

1.4 years ago

Knowledge Cutoff

When training data ends

Llama-3.3 Nemotron Super 49B 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-3.3 Nemotron Super 49B 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-3.3 Nemotron Super 49B v1

Dec 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

xAI
Larger context window (256,000 tokens)
NVIDIA
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Grok Code Fast 1 and Llama-3.3 Nemotron Super 49B v1 side-by-side, then vote on the output you prefer.

Grok Code Fast 1
✓ Preferred
Llama-3.3 Nemotron Super 49B v1
Open in Playground
AI Model Comparison Table
Feature
xAI
Grok Code Fast 1
NVIDIA
Llama-3.3 Nemotron Super 49B v1

FAQ

Common questions about Grok Code Fast 1 vs Llama-3.3 Nemotron Super 49B v1.

Which is better, Grok Code Fast 1 or Llama-3.3 Nemotron Super 49B v1?

Grok Code Fast 1 (xAI) and Llama-3.3 Nemotron Super 49B v1 (NVIDIA) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Grok Code Fast 1 compare to Llama-3.3 Nemotron Super 49B v1 in benchmarks?

Grok Code Fast 1 scores SWE-Bench Verified: 70.8%. Llama-3.3 Nemotron Super 49B v1 scores MATH-500: 96.6%, MT-Bench: 91.7%, MBPP: 91.3%, Arena Hard: 88.3%, BFCL v2: 73.7%.

What are the context window sizes for Grok Code Fast 1 and Llama-3.3 Nemotron Super 49B v1?

Grok Code Fast 1 supports 256K tokens and Llama-3.3 Nemotron Super 49B 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-3.3 Nemotron Super 49B v1?

Key differences include 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-3.3 Nemotron Super 49B v1?

Grok Code Fast 1 is developed by xAI and Llama-3.3 Nemotron Super 49B v1 is developed by NVIDIA.

Related comparisons