Model Comparison

Gemini Diffusion vs Grok-1.5

Gemini Diffusion significantly outperforms across most benchmarks.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Gemini Diffusion outperforms in 2 benchmarks (GPQA, HumanEval), while Grok-1.5 is better at 0 benchmarks.

Gemini Diffusion significantly outperforms across most benchmarks.

Fri Apr 10 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
Fri Apr 10 2026 • llm-stats.com
Google
Gemini Diffusion
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
xAI
Grok-1.5
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
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License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini Diffusion

Proprietary

Closed source

Grok-1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini Diffusion was released on 2025-05-20, while Grok-1.5 was released on 2024-03-28.

Gemini Diffusion is 14 months newer than Grok-1.5.

Gemini Diffusion

May 20, 2025

10 months ago

1.1yr newer
Grok-1.5

Mar 28, 2024

2.0 years ago

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

Google
Higher GPQA score (40.4% vs 35.9%)
Higher HumanEval score (89.6% vs 74.1%)
xAI

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini Diffusion
xAI
Grok-1.5

FAQ

Common questions about Gemini Diffusion vs Grok-1.5

Gemini Diffusion significantly outperforms across most benchmarks. Gemini Diffusion is made by Google and Grok-1.5 is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Gemini Diffusion scores HumanEval: 89.6%, MBPP: 76.0%, Global-MMLU-Lite: 69.1%, LBPP (v2): 56.8%, BigCodeBench: 45.4%. Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%.
Gemini Diffusion is developed by Google and Grok-1.5 is developed by xAI.