GPT-4o mini vs Grok-2 mini
GPT-4o mini and Grok-2 mini are closely matched at 3.9 and 8.8 on the LLM Stats Score.
OpenAI · xAI · Updated for 2026
Which is better?
GPT-4o mini and Grok-2 mini are closely matched on the overall LLM Stats Score at 3.9 and 8.8.
In the 6 individual benchmarks reported for both models, Grok-2 mini wins 5; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-4o mini
- you want predictable pricing at $0.15/M input and $0.60/M output
Choose Grok-2 mini
- you value its reported benchmark strengths — it wins 5 of 6 exact shared results
- 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
9 reported for GPT-4o mini · 8 for Grok-2 mini
GPT-4o mini outperforms in 1 benchmarks (HumanEval), while Grok-2 mini is better at 5 benchmarks (GPQA, MATH, MathVista, MMLU, MMMU).
Grok-2 mini significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only GPT-4o mini specifies input context (128,000 tokens). Only GPT-4o mini specifies output context (16,384 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-4o mini and Grok-2 mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4o mini
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 mini was released on 2024-07-18, while Grok-2 mini was released on 2024-08-13.
Grok-2 mini is 1 month newer than GPT-4o mini.
Jul 18, 2024
2.1 years ago
Aug 13, 2024
2.0 years ago
3w newerKnowledge Cutoff
When training data ends
GPT-4o mini has a documented knowledge cutoff of 2023-10-01, while Grok-2 mini's cutoff date is not specified.
We can confirm GPT-4o mini's training data extends to 2023-10-01, but cannot make a direct comparison without Grok-2 mini's cutoff date.
Oct 2023
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Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4o mini and Grok-2 mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4o mini vs Grok-2 mini.