Grok-1.5 vs Gemini 1.5 Flash 8B Comparison

Comparing Grok-1.5 and Gemini 1.5 Flash 8B across benchmarks, pricing, and capabilities.

Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Grok-1.5 outperforms in 0 benchmarks, while Gemini 1.5 Flash 8B is better at 5 benchmarks (GPQA, MATH, MathVista, MMLU-Pro, MMMU).

Gemini 1.5 Flash 8B significantly outperforms across most benchmarks.

Thu Mar 19 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
Thu Mar 19 2026 • llm-stats.com
xAI
Grok-1.5
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
Google
Gemini 1.5 Flash 8B
Input tokens$0.07
Output tokens$0.30
Best providerGoogle
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Context Window

Maximum input and output token capacity

Only Gemini 1.5 Flash 8B specifies input context (1,048,576 tokens). Only Gemini 1.5 Flash 8B specifies output context (8,192 tokens).

xAI
Grok-1.5
Input- tokens
Output- tokens
Google
Gemini 1.5 Flash 8B
Input1,048,576 tokens
Output8,192 tokens
Thu Mar 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 1.5 Flash 8B supports multimodal inputs, whereas Grok-1.5 does not.

Gemini 1.5 Flash 8B can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-1.5

Text
Images
Audio
Video

Gemini 1.5 Flash 8B

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Grok-1.5

Proprietary

Closed source

Gemini 1.5 Flash 8B

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-1.5 was released on 2024-03-28, while Gemini 1.5 Flash 8B was released on 2024-03-15.

Grok-1.5 is 0 month newer than Gemini 1.5 Flash 8B.

Grok-1.5

Mar 28, 2024

2.0 years ago

1w newer
Gemini 1.5 Flash 8B

Mar 15, 2024

2.0 years ago

Knowledge Cutoff

When training data ends

Gemini 1.5 Flash 8B has a documented knowledge cutoff of 2024-10-01, while Grok-1.5's cutoff date is not specified.

We can confirm Gemini 1.5 Flash 8B's training data extends to 2024-10-01, but cannot make a direct comparison without Grok-1.5's cutoff date.

Grok-1.5

Gemini 1.5 Flash 8B

Oct 2024

Outputs Comparison

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Key Takeaways

Larger context window (1,048,576 tokens)
Supports multimodal inputs
Higher GPQA score (38.4% vs 35.9%)
Higher MATH score (58.7% vs 50.6%)
Higher MathVista score (54.7% vs 52.8%)
Higher MMLU-Pro score (58.7% vs 51.0%)
Higher MMMU score (53.7% vs 53.6%)
xAIGrok-1.5
GoogleGemini 1.5 Flash 8B

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-1.5
Google
Gemini 1.5 Flash 8B