+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
Gemini 1.5 Pro vs Grok 4 Fast
Comprehensive side-by-side LLM comparison
Grok 4 Fast leads with 26.6% higher average benchmark score. Gemini 1.5 Pro offers 75.3K more tokens in context window than Grok 4 Fast. Grok 4 Fast is $11.80 cheaper per million tokens. Overall, Grok 4 Fast is the stronger choice for coding tasks.
+
+
+
+
Gemini 1.5 Pro was introduced as Google's advanced multimodal model with an expanded context window, designed to comprehend and reason across long documents, videos, and audio. Built to handle complex, information-rich tasks, it brought breakthrough capabilities in processing extended context while maintaining high-quality reasoning and generation.
+
+
+
+
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 Pro
2024-05-01
Grok 4 Fast
xAI
2025-08-28
+
+
+
+
+
+
+
+
+
+
+
+
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
Gemini 1.5 Pro
Input:$2.50
Output:$10.00
+
+
+
+
Grok 4 Fast
Input:$0.20
Output:$0.50($11.80 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
+
+
+
+
Gemini 1.5 Pro
Average Score:59.1%
+
+
+
+
Grok 4 Fast
Average Score:85.7%(+26.6%)
+
+
+
+
Knowledge Cutoff
Training data recency comparison
Gemini 1.5 Pro
2023-11-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
Gemini 1.5 Pro
1 providers
Throughput: 85 tok/s
Latency: 0.7ms
+
+
+
+
Grok 4 Fast
+
+
+
+
Gemini 1.5 Pro
Avg Score:59.1%
Providers:1
+
+
+
+
Grok 4 Fast
Avg Score:85.7%(+26.6%)
Providers:1