Comprehensive side-by-side LLM comparison
Grok Code Fast 1 leads with 37.6% higher average benchmark score. Grok Code Fast 1 offers 121.6K more tokens in context window than GPT-4o. Grok Code Fast 1 is $10.80 cheaper per million tokens. GPT-4o supports multimodal inputs. Overall, Grok Code Fast 1 is the stronger choice for coding tasks.
OpenAI
This updated version of GPT-4o was released with refinements to its multimodal capabilities and improved performance across text, vision, and audio tasks. Built to incorporate learnings from the initial GPT-4o deployment, it enhanced reliability and accuracy while maintaining the seamless cross-modal reasoning that defines the GPT-4o family.
xAI
Grok Code Fast was developed as a specialized coding model optimized for speed, designed to provide rapid code completion, generation, and assistance. Built to serve developers requiring quick feedback and iterative coding support, it combines programming expertise with low-latency responses.
1 year newer

GPT-4o
OpenAI
2024-08-06

Grok Code Fast 1
xAI
2025-08-28
Cost per million tokens (USD)

GPT-4o

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

GPT-4o

Grok Code Fast 1
Performance comparison across key benchmark categories

GPT-4o

Grok Code Fast 1
Available providers and their performance metrics

GPT-4o
Azure
OpenAI


GPT-4o

Grok Code Fast 1

GPT-4o

Grok Code Fast 1
Grok Code Fast 1
xAI