Model Comparison

Grok-1.5 vs Gemma 2 9BWhich is better in 2026?

Grok-1.5 significantly outperforms across most benchmarks.

Verdict: Grok-1.5 vs Gemma 2 9B — which is better?

Grok-1.5 (by xAI) and Gemma 2 9B (by Google) 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 (GSM8k, HumanEval, MATH, MMLU), while Gemma 2 9B 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 Gemma 2 9B if…

  • you want the most recent training data — it shipped Jun 2024
  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Grok-1.5 outperforms in 4 benchmarks (GSM8k, HumanEval, MATH, MMLU), while Gemma 2 9B is better at 0 benchmarks.

Grok-1.5 significantly outperforms across most benchmarks.

Sat Jun 06 2026 • llm-stats.com

Arena Performance

Human preference votes

License

Usage and distribution terms

Grok-1.5 is licensed under a proprietary license, while Gemma 2 9B uses Gemma.

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

Grok-1.5

Proprietary

Closed source

Gemma 2 9B

Gemma

Open weights

Release Timeline

When each model was launched

Grok-1.5 was released on 2024-03-28, while Gemma 2 9B was released on 2024-06-27.

Gemma 2 9B is 3 months newer than Grok-1.5.

Grok-1.5

Mar 28, 2024

2.2 years ago

Gemma 2 9B

Jun 27, 2024

1.9 years ago

3mo 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 GSM8k score (90.0% vs 68.6%)
Higher HumanEval score (74.1% vs 40.2%)
Higher MATH score (50.6% vs 36.6%)
Higher MMLU score (81.3% vs 71.3%)
Google
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-1.5
Google
Gemma 2 9B

FAQ

Common questions about Grok-1.5 vs Gemma 2 9B.

Which is better, Grok-1.5 or Gemma 2 9B?

Grok-1.5 significantly outperforms across most benchmarks. Grok-1.5 is made by xAI and Gemma 2 9B is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Grok-1.5 compare to Gemma 2 9B in benchmarks?

Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%. Gemma 2 9B scores ARC-E: 88.0%, BoolQ: 84.2%, HellaSwag: 81.9%, PIQA: 81.7%, Winogrande: 80.6%.

What are the main differences between Grok-1.5 and Gemma 2 9B?

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

Who makes Grok-1.5 and Gemma 2 9B?

Grok-1.5 is developed by xAI and Gemma 2 9B is developed by Google.

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