Model Comparison

Grok-1.5 vs Gemma 2 27B

Grok-1.5 significantly outperforms across most benchmarks.

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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 27B is better at 0 benchmarks.

Grok-1.5 significantly outperforms across most benchmarks.

Wed Apr 22 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Cost data unavailable.

Lowest available price from all providers
Wed Apr 22 2026 • llm-stats.com
xAI
Grok-1.5
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
Google
Gemma 2 27B
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
Notice missing or incorrect data?Start an Issue→

License

Usage and distribution terms

Grok-1.5 is licensed under a proprietary license, while Gemma 2 27B 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 27B

Gemma

Open weights

Release Timeline

When each model was launched

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

Gemma 2 27B is 3 months newer than Grok-1.5.

Grok-1.5

Mar 28, 2024

2.1 years ago

Gemma 2 27B

Jun 27, 2024

1.8 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

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Key Takeaways

xAI
Higher GSM8k score (90.0% vs 74.0%)
Higher HumanEval score (74.1% vs 51.8%)
Higher MATH score (50.6% vs 42.3%)
Higher MMLU score (81.3% vs 75.2%)
Google
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-1.5
Google
Gemma 2 27B

FAQ

Common questions about Grok-1.5 vs Gemma 2 27B

Grok-1.5 significantly outperforms across most benchmarks. Grok-1.5 is made by xAI and Gemma 2 27B is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%. Gemma 2 27B scores ARC-E: 88.6%, HellaSwag: 86.4%, BoolQ: 84.8%, TriviaQA: 83.7%, Winogrande: 83.7%.
Key differences include licensing (Proprietary vs Gemma). See the full comparison above for benchmark-by-benchmark results.
Grok-1.5 is developed by xAI and Gemma 2 27B is developed by Google.