Comprehensive side-by-side LLM comparison
GPT-4.1 nano offers 814.3K more tokens in context window than Grok Code Fast 1. GPT-4.1 nano is $1.20 cheaper per million tokens. GPT-4.1 nano supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-4.1 Nano was developed as the smallest and most efficient variant in the GPT-4.1 family, designed for applications requiring minimal latency and resource usage. Built to enable AI capabilities on edge devices and resource-constrained environments, it distills GPT-4.1 capabilities into an ultra-compact form factor.
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.
4 months newer

GPT-4.1 nano
OpenAI
2025-04-14

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

GPT-4.1 nano

Grok Code Fast 1
Context window and performance specifications
GPT-4.1 nano
2024-05-31
Available providers and their performance metrics

GPT-4.1 nano
OpenAI

Grok Code Fast 1

GPT-4.1 nano

Grok Code Fast 1

GPT-4.1 nano

Grok Code Fast 1
xAI