Model Comparison

Grok-1.5 vs Llama 3.2 3B InstructWhich is better in 2026?

Grok-1.5 significantly outperforms across most benchmarks.

Verdict: Grok-1.5 vs Llama 3.2 3B Instruct — which is better?

Grok-1.5 (by xAI) and Llama 3.2 3B Instruct (by Meta) 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.

Grok-1.5 outperforms in 4 benchmarks (GPQA, GSM8k, MATH, MMLU), while Llama 3.2 3B Instruct is better at 0 benchmarks. Grok-1.5 significantly outperforms across most benchmarks.

Choose Grok-1.5 if…

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

Choose Llama 3.2 3B Instruct if…

  • you want the most recent training data — it shipped Sep 2024
  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Grok-1.5 outperforms in 4 benchmarks (GPQA, GSM8k, MATH, MMLU), while Llama 3.2 3B Instruct is better at 0 benchmarks.

Grok-1.5 significantly outperforms across most benchmarks.

Thu Jun 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Llama 3.2 3B Instruct specifies input context (128,000 tokens). Only Llama 3.2 3B Instruct specifies output context (128,000 tokens).

xAI
Grok-1.5
Input- tokens
Output- tokens
Meta
Llama 3.2 3B Instruct
Input128,000 tokens
Output128,000 tokens
Thu Jun 18 2026 • llm-stats.com

License

Usage and distribution terms

Grok-1.5 is licensed under a proprietary license, while Llama 3.2 3B Instruct uses Llama 3.2 Community License.

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

Grok-1.5

Proprietary

Closed source

Llama 3.2 3B Instruct

Llama 3.2 Community License

Open weights

Release Timeline

When each model was launched

Grok-1.5 was released on 2024-03-28, while Llama 3.2 3B Instruct was released on 2024-09-25.

Llama 3.2 3B Instruct is 6 months newer than Grok-1.5.

Grok-1.5

Mar 28, 2024

2.2 years ago

Llama 3.2 3B Instruct

Sep 25, 2024

1.7 years ago

6mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

xAI
Higher GPQA score (35.9% vs 32.8%)
Higher GSM8k score (90.0% vs 77.7%)
Higher MATH score (50.6% vs 48.0%)
Higher MMLU score (81.3% vs 63.4%)
Meta
Larger context window (128,000 tokens)
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-1.5
Meta
Llama 3.2 3B Instruct

FAQ

Common questions about Grok-1.5 vs Llama 3.2 3B Instruct.

Which is better, Grok-1.5 or Llama 3.2 3B Instruct?

Grok-1.5 significantly outperforms across most benchmarks. Grok-1.5 is made by xAI and Llama 3.2 3B Instruct is made by Meta. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Grok-1.5 compare to Llama 3.2 3B Instruct in benchmarks?

Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%. Llama 3.2 3B Instruct scores NIH/Multi-needle: 84.7%, ARC-C: 78.6%, GSM8k: 77.7%, IFEval: 77.4%, HellaSwag: 69.8%.

What are the context window sizes for Grok-1.5 and Llama 3.2 3B Instruct?

Grok-1.5 supports an unknown number of tokens and Llama 3.2 3B Instruct supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok-1.5 and Llama 3.2 3B Instruct?

Key differences include licensing (Proprietary vs Llama 3.2 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-1.5 and Llama 3.2 3B Instruct?

Grok-1.5 is developed by xAI and Llama 3.2 3B Instruct is developed by Meta.

Related comparisons