Comprehensive side-by-side LLM comparison
Grok 3 mini offers 3.1K more tokens in context window than GPT-4o. Grok 3 mini is $11.70 cheaper per million tokens. GPT-4o supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
GPT-4o, released by OpenAI in May 2024, is a multimodal large language model from the GPT-4 family that natively processes text, image, and audio inputs in a single end-to-end model. It features a 128K token context window and demonstrated competitive performance across coding, reasoning, and vision benchmarks at its release. GPT-4o targets general-purpose assistant applications, vision-enabled workflows, and use cases requiring low-latency multimodal understanding.
xAI
Grok 3 mini, released by xAI alongside Grok 3 in February 2025, is a compact reasoning model from the Grok 3 family featuring RL-enhanced Think mode for extended chain-of-thought processing. It features a 131K token context window and targets STEM tasks, mathematics, and coding applications where cost-efficient reasoning with configurable depth is required.
9 months newer

GPT-4o
OpenAI
2024-05-13

Grok 3 mini
xAI
2025-02-17
Cost per million tokens (USD)
GPT-4o
Grok 3 mini
Context window and performance specifications
GPT-4o
2024-04
Available providers and their performance metrics
GPT-4o
OpenAI
Grok 3 mini
GPT-4o
Grok 3 mini
GPT-4o
Grok 3 mini
xAI