Model Comparison

Granite 3.3 8B Base vs Grok-2Which is better in 2026?

Both models are evenly matched across the benchmarks.

Verdict: Granite 3.3 8B Base vs Grok-2 — which is better?

Granite 3.3 8B Base (by IBM) and Grok-2 (by xAI) 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.

Granite 3.3 8B Base outperforms in 1 benchmarks (HumanEval), while Grok-2 is better at 1 benchmark (MMLU). Both models are evenly matched across the benchmarks.

Choose Granite 3.3 8B Base if…

  • you want the most recent training data — it shipped Apr 2025
  • you need open weights you can self-host or fine-tune

Choose Grok-2 if…

  • you want predictable pricing at $2.00/M input and $10.00/M output

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Granite 3.3 8B Base outperforms in 1 benchmarks (HumanEval), while Grok-2 is better at 1 benchmark (MMLU).

Both models are evenly matched across the benchmarks.

Wed Jul 15 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Grok-2 specifies input context (128,000 tokens). Only Grok-2 specifies output context (8,000 tokens).

IBM
Granite 3.3 8B Base
Input- tokens
Output- tokens
xAI
Grok-2
Input128,000 tokens
Output8,000 tokens
Wed Jul 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Granite 3.3 8B Base and Grok-2 support multimodal inputs.

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

Granite 3.3 8B Base

Text
Images
Audio
Video

Grok-2

Text
Images
Audio
Video

License

Usage and distribution terms

Granite 3.3 8B Base is licensed under Apache 2.0, while Grok-2 uses a proprietary license.

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

Granite 3.3 8B Base

Apache 2.0

Open weights

Grok-2

Proprietary

Closed source

Release Timeline

When each model was launched

Granite 3.3 8B Base was released on 2025-04-16, while Grok-2 was released on 2024-08-13.

Granite 3.3 8B Base is 8 months newer than Grok-2.

Granite 3.3 8B Base

Apr 16, 2025

1.2 years ago

8mo newer
Grok-2

Aug 13, 2024

1.9 years ago

Knowledge Cutoff

When training data ends

Granite 3.3 8B Base has a documented knowledge cutoff of 2024-04-01, while Grok-2's cutoff date is not specified.

We can confirm Granite 3.3 8B Base's training data extends to 2024-04-01, but cannot make a direct comparison without Grok-2's cutoff date.

Granite 3.3 8B Base

Apr 2024

Grok-2

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Key Takeaways

Has open weights
Higher HumanEval score (89.7% vs 88.4%)
Larger context window (128,000 tokens)
Higher MMLU score (87.5% vs 63.9%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Granite 3.3 8B Base and Grok-2 side-by-side, then vote on the output you prefer.

Granite 3.3 8B Base
✓ Preferred
Grok-2
Open in Playground
AI Model Comparison Table
Feature
IBM
Granite 3.3 8B Base
xAI
Grok-2

FAQ

Common questions about Granite 3.3 8B Base vs Grok-2.

Which is better, Granite 3.3 8B Base or Grok-2?

Both models are evenly matched across the benchmarks. Granite 3.3 8B Base is made by IBM and Grok-2 is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Granite 3.3 8B Base compare to Grok-2 in benchmarks?

Granite 3.3 8B Base scores HumanEval: 89.7%, AttaQ: 88.5%, HumanEval+: 86.1%, AIME 2024: 81.2%, HellaSwag: 80.1%. Grok-2 scores DocVQA: 93.6%, HumanEval: 88.4%, MMLU: 87.5%, MATH: 76.1%, MMLU-Pro: 75.5%.

What are the context window sizes for Granite 3.3 8B Base and Grok-2?

Granite 3.3 8B Base supports an unknown number of tokens and Grok-2 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 Granite 3.3 8B Base and Grok-2?

Key differences include licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Granite 3.3 8B Base and Grok-2?

Granite 3.3 8B Base is developed by IBM and Grok-2 is developed by xAI.