Comprehensive side-by-side LLM comparison
Grok 4 Fast leads with 47.3% higher average benchmark score. Grok 4 Fast offers 973.2K more tokens in context window than Gemini 1.5 Flash 8B. Both models have similar pricing. Overall, Grok 4 Fast is the stronger choice for coding tasks.
Gemini 1.5 Flash 8B was developed as an ultra-compact variant of Gemini 1.5 Flash, designed to deliver multimodal capabilities with minimal resource requirements. Built for deployment scenarios where efficiency is critical, it provides a lightweight option for applications requiring fast, cost-effective AI processing.
xAI
Grok 4 Fast is a multimodal language model developed by xAI. It achieves strong performance with an average score of 73.0% across 7 benchmarks. It excels particularly in SimpleQA (95.0%), HMMT 2025 (93.3%), AIME 2025 (92.0%). With a 2.0M token context window, it can handle extensive documents and complex multi-turn conversations. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents xAI's latest advancement in AI technology.
1 year newer

Gemini 1.5 Flash 8B
2024-03-15

Grok 4 Fast
xAI
2025-08-28
Cost per million tokens (USD)

Gemini 1.5 Flash 8B

Grok 4 Fast
Context window and performance specifications
Average performance across 1 common benchmarks

Gemini 1.5 Flash 8B

Grok 4 Fast
Gemini 1.5 Flash 8B
2024-10-01
Available providers and their performance metrics

Gemini 1.5 Flash 8B

Grok 4 Fast

Gemini 1.5 Flash 8B

Grok 4 Fast

Gemini 1.5 Flash 8B

Grok 4 Fast
xAI