GPT-4o mini vs Grok-2
Grok-2 leads the LLM Stats Score 11.6 to 3.9. GPT-4o mini is 15.2x cheaper per token.
OpenAI · xAI · Updated for 2026
Which is better?
Grok-2 leads the overall LLM Stats Score 11.6 to 3.9, ranking #242 overall.
In the 6 individual benchmarks reported for both models, Grok-2 wins 6; this is a narrower head-to-head signal than the composite indexes.
On price, GPT-4o mini is roughly 15.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-4o mini
- cost matters — it's about 15.2x cheaper per token
Choose Grok-2
- overall performance matters — it scores 11.6 and ranks #242 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 6 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
GPT-4o mini outperforms in 0 benchmarks, while Grok-2 is better at 6 benchmarks (GPQA, HumanEval, MATH, MathVista, MMLU, MMMU).
Grok-2 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GPT-4o mini ($0.15/1M tokens) is 13.3x cheaper than Grok-2 ($2.00/1M tokens).
For output processing, GPT-4o mini ($0.60/1M tokens) is 16.7x cheaper than Grok-2 ($10.00/1M tokens).
In conclusion, Grok-2 is more expensive than GPT-4o mini.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 128,000 tokens. GPT-4o mini can generate longer responses up to 16,384 tokens, while Grok-2 is limited to 8,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-4o mini and Grok-2 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4o mini
Grok-2
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 was released on 2024-08-13.
Grok-2 is 1 month newer than GPT-4o mini.
Jul 18, 2024
2.1 years ago
Aug 13, 2024
2.1 years ago
3w newerKnowledge Cutoff
When training data ends
GPT-4o mini has a documented knowledge cutoff of 2023-10-01, while Grok-2'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's cutoff date.
Oct 2023
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Provider Availability
GPT-4o mini is available from Azure. Grok-2 is available from xAI.
GPT-4o mini
Grok-2
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4o mini and Grok-2 side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4o mini vs Grok-2.