GPT-4o mini vs Grok-3 Mini
Grok-3 Mini leads the LLM Stats Score 31.6 to 3.8. GPT-4o mini is 1.3x cheaper per token.
OpenAI · xAI · Updated for 2026
Which is better?
Grok-3 Mini leads the overall LLM Stats Score 31.6 to 3.8, ranking #103 overall.
In the 1 individual benchmarks reported for both models, Grok-3 Mini wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, GPT-4o mini is roughly 1.3x 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 1.3x cheaper per token
Choose Grok-3 Mini
- overall performance matters — it scores 31.6 and ranks #103 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Feb 2025
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 · 4 for Grok-3 Mini
GPT-4o mini outperforms in 0 benchmarks, while Grok-3 Mini is better at 1 benchmark (GPQA).
Grok-3 Mini 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 2.0x cheaper than Grok-3 Mini ($0.30/1M tokens).
For output processing, GPT-4o mini ($0.60/1M tokens) is 1.2x more expensive than Grok-3 Mini ($0.50/1M tokens).
In conclusion, Grok-3 Mini 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-3 Mini is limited to 8,000 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-4o mini and Grok-3 Mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4o mini
Grok-3 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-3 Mini was released on 2025-02-17.
Grok-3 Mini is 7 months newer than GPT-4o mini.
Jul 18, 2024
2.1 years ago
Feb 17, 2025
1.5 years ago
7mo newerKnowledge Cutoff
When training data ends
GPT-4o mini has a knowledge cutoff of 2023-10-01, while Grok-3 Mini has a cutoff of 2024-11-17.
Grok-3 Mini has more recent training data (up to 2024-11-17), making it potentially better informed about events through that date compared to GPT-4o mini (2023-10-01).
Oct 2023
Nov 2024
1.1 yr newerProvider Availability
GPT-4o mini is available from Azure. Grok-3 Mini is available from xAI.
GPT-4o mini
Grok-3 Mini
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4o mini and Grok-3 Mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4o mini vs Grok-3 Mini.