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GPT-4o-mini vs Grok 3 (Comparative Analysis)

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Comparative Analysis: GPT-4o-mini vs. Grok 3
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Overview

GPT-4o-mini was released 10 months before Grok 3.
GPT-4o-miniGPT-4o-mini
Grok 3Grok 3
Model Provider
The organization behind this AI's development
OpenAI logoOpenAI
XAI logoXAI
Input Context Window
Maximum input tokens this model can process at once
128K
tokens
131.1K
tokens
Output Token Limit
Maximum output tokens this model can generate at once
16.4K
tokens
Not specified
tokens
Release Date
When this model first became publicly available
July 18th, 2024
June 10th, 2025

Capabilities & Features

Compare supported features, modalities, and advanced capabilities
GPT-4o-mini
Grok 3
Input Types
Supported input formats
📝Text🖼️Image📁File
📝Text
Output Types
Supported output formats
📝Text
📝Text
Tokenizer
Text encoding system
GPTGrok
Key Features
Advanced capabilities
Function CallingStructured OutputReasoning ModeContent Moderation
Function CallingStructured OutputReasoning ModeContent Moderation

Pricing

GPT-4o-mini is roughly 0.05x less expensive compared to Grok 3 for input tokens and roughly 0.04x less expensive for output tokens.
GPT-4o-miniGPT-4o-mini
Grok 3Grok 3
Input Token Cost
Cost per million input tokens
$0.15
per million tokens
$3.00
per million tokens
Output Token Cost
Cost per million outut tokens
$0.60
per million tokens
$15.00
per million tokens

Benchmarks

Compare relevant benchmarks between GPT-4o-mini and Grok 3.
GPT-4o-miniGPT-4o-mini
Grok 3Grok 3
MMLU
Measures knowledge across 57 subjects like law, math, history, and science
Benchmark not available.
Benchmark not available.
MMMU
Measures understanding of combined text and images across various domains
Benchmark not available.
Benchmark not available.
HellaSwag
Measures common sense reasoning by having models complete sentences about everyday situations
Benchmark not available.
Benchmark not available.

At a Glance

Quick overview of what makes GPT-4o-mini and Grok 3 unique.
OpenAI logoGPT-4o-mini by OpenAI understands both text and images, can use external tools and APIs, generates structured data. It can handle standard conversations with its 128K token context window. Very affordable at $0.15/M input and $0.60/M output tokens. Includes built-in content moderation for safer outputs. Released July 18th, 2024.
XAI logoGrok 3 by XAI can use external tools and APIs, generates structured data. It can handle standard conversations with its 131.1K token context window. Premium pricing at $3.00/M input and $15.00/M output tokens. Released June 10th, 2025.

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