GPT-4o vs Grok-3 Mini
Grok-3 Mini leads the LLM Stats Score 31.3 to 11.5. Grok-3 Mini is 12.5x cheaper per token.
OpenAI · xAI · Updated for 2026
Which is better?
Grok-3 Mini leads the overall LLM Stats Score 31.3 to 11.5, ranking #111 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, Grok-3 Mini is roughly 12.5x 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
- you want predictable pricing at $2.50/M input and $10.00/M output
Choose Grok-3 Mini
- overall performance matters — it scores 31.3 and ranks #111 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- cost matters — it's about 12.5x cheaper per token
- 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
8 reported for GPT-4o · 4 for Grok-3 Mini
GPT-4o 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 ($2.50/1M tokens) is 8.3x more expensive than Grok-3 Mini ($0.30/1M tokens).
For output processing, GPT-4o ($10.00/1M tokens) is 20.0x more expensive than Grok-3 Mini ($0.50/1M tokens).
In conclusion, GPT-4o is more expensive than Grok-3 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. Grok-3 Mini can generate longer responses up to 8,000 tokens, while GPT-4o is limited to 4,096 tokens.
Input capabilities
Documented input modalities across available providers
Both GPT-4o and Grok-3 Mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4o
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 was released on 2024-05-13, while Grok-3 Mini was released on 2025-02-17.
Grok-3 Mini is 9 months newer than GPT-4o.
May 13, 2024
2.4 years ago
Feb 17, 2025
1.6 years ago
9mo newerKnowledge Cutoff
When training data ends
Grok-3 Mini has a documented knowledge cutoff of 2024-11-17, while GPT-4o's cutoff date is not specified.
We can confirm Grok-3 Mini's training data extends to 2024-11-17, but cannot make a direct comparison without GPT-4o's cutoff date.
—
Nov 2024
Provider Availability
GPT-4o is available from Azure, OpenAI. Grok-3 Mini is available from xAI.
GPT-4o
Grok-3 Mini
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4o and Grok-3 Mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4o vs Grok-3 Mini.