+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GPT-4 Turbo vs Grok 4 Fast
Comprehensive side-by-side LLM comparison
Grok 4 Fast leads with 37.7% higher average benchmark score. Grok 4 Fast offers 1.9M more tokens in context window than GPT-4 Turbo. Grok 4 Fast is $39.30 cheaper per million tokens. Grok 4 Fast supports multimodal inputs. Overall, Grok 4 Fast is the stronger choice for coding tasks.
+
+
+
+
OpenAI
GPT-4 Turbo was introduced as an optimized version of GPT-4, designed to provide enhanced performance with improved efficiency and an expanded context window. Built with updated knowledge and refined capabilities, it offered developers a more cost-effective way to leverage GPT-4's advanced reasoning while handling longer conversations and documents.
+
+
+
+
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
GPT-4 Turbo
OpenAI
2024-04-09
Grok 4 Fast
xAI
2025-08-28
+
+
+
+
+
+
+
+
+
+
+
+
Pricing Comparison
Cost per million tokens (USD)
+
+
+
+
GPT-4 Turbo
Input:$10.00
Output:$30.00
+
+
+
+
Grok 4 Fast
Input:$0.20
Output:$0.50($39.30 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
+
+
+
+
GPT-4 Turbo
Average Score:48.0%
+
+
+
+
Grok 4 Fast
Average Score:85.7%(+37.7%)
+
+
+
+
Knowledge Cutoff
Training data recency comparison
GPT-4 Turbo
2023-12-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
+
+
+
+
GPT-4 Turbo
2 providers
Azure
Throughput: 97 tok/s
Latency: 0.6ms
OpenAI
Throughput: 100 tok/s
Latency: 0.5ms
+
+
+
+
+
+
+
+
GPT-4 Turbo
Avg Score:48.0%
Providers:2
+
+
+
+
Grok 4 Fast
Avg Score:85.7%(+37.7%)
Providers:1