GPT-4o vs Grok-2 mini
GPT-4o and Grok-2 mini are closely matched at 13.5 and 8.1 on the LLM Stats Score.
OpenAI · xAI · Updated for 2026
Which is better?
GPT-4o and Grok-2 mini are closely matched on the overall LLM Stats Score at 13.5 and 8.1.
The models split the 6 individual benchmarks reported for both models evenly.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-4o
- you want predictable pricing at $2.50/M input and $10.00/M output
Choose Grok-2 mini
- you want the most recent training data — it shipped Aug 2024
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
38 reported for GPT-4o · 8 for Grok-2 mini
GPT-4o outperforms in 3 benchmarks (GPQA, MMLU-Pro, MMMU), while Grok-2 mini is better at 3 benchmarks (DocVQA, MathVista, MMLU).
Both models are evenly matched across the benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only GPT-4o specifies input context (128,000 tokens). Only GPT-4o specifies output context (16,384 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-4o and Grok-2 mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4o
Grok-2 mini
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
GPT-4o was released on 2024-08-06, while Grok-2 mini was released on 2024-08-13.
Grok-2 mini is 0 month newer than GPT-4o.
Aug 6, 2024
2.2 years ago
Aug 13, 2024
2.2 years ago
1w newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4o and Grok-2 mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4o vs Grok-2 mini.