Model Comparison

ChatGPT-4o Latest vs Grok-3 Mini

Both models are evenly matched across the benchmarks. Grok-3 Mini is 12.5x cheaper per token.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

ChatGPT-4o Latest outperforms in 0 benchmarks, while Grok-3 Mini is better at 0 benchmarks.

Both models are evenly matched across the benchmarks.

Sat Jun 06 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok-3 Mini costs less

For input processing, ChatGPT-4o Latest ($2.50/1M tokens) is 8.3x more expensive than Grok-3 Mini ($0.30/1M tokens).

For output processing, ChatGPT-4o Latest ($10.00/1M tokens) is 20.0x more expensive than Grok-3 Mini ($0.50/1M tokens).

In conclusion, ChatGPT-4o Latest is more expensive than Grok-3 Mini.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sat Jun 06 2026 • llm-stats.com
OpenAI
ChatGPT-4o Latest
Input tokens$2.50
Output tokens$10.00
Best providerOpenAI
xAI
Grok-3 Mini
Input tokens$0.30
Output tokens$0.50
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 128,000 tokens. ChatGPT-4o Latest can generate longer responses up to 16,384 tokens, while Grok-3 Mini is limited to 8,000 tokens.

OpenAI
ChatGPT-4o Latest
Input128,000 tokens
Output16,384 tokens
xAI
Grok-3 Mini
Input128,000 tokens
Output8,000 tokens
Sat Jun 06 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both ChatGPT-4o Latest and Grok-3 Mini support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

ChatGPT-4o Latest

Text
Images
Audio
Video

Grok-3 Mini

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

ChatGPT-4o Latest

Proprietary

Closed source

Grok-3 Mini

Proprietary

Closed source

Release Timeline

When each model was launched

ChatGPT-4o Latest was released on 2024-05-13, while Grok-3 Mini was released on 2025-02-17.

Grok-3 Mini is 9 months newer than ChatGPT-4o Latest.

ChatGPT-4o Latest

May 13, 2024

2.1 years ago

Grok-3 Mini

Feb 17, 2025

1.3 years ago

9mo newer

Knowledge Cutoff

When training data ends

Grok-3 Mini has a documented knowledge cutoff of 2024-11-17, while ChatGPT-4o Latest'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 ChatGPT-4o Latest's cutoff date.

ChatGPT-4o Latest

—

Grok-3 Mini

Nov 2024

Provider Availability

ChatGPT-4o Latest is available from OpenAI. Grok-3 Mini is available from xAI.

ChatGPT-4o Latest

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

Grok-3 Mini

xai logo
xAI
Input Price:Input: $0.30/1MOutput Price:Output: $0.50/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI

No standout differentiators in the data we have for this pair.

xAI
Less expensive input tokens
Less expensive output tokens
OpenAIChatGPT-4o Latest
xAIGrok-3 Mini
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
ChatGPT-4o Latest
xAI
Grok-3 Mini

FAQ

Common questions about ChatGPT-4o Latest vs Grok-3 Mini.

Which is better, ChatGPT-4o Latest or Grok-3 Mini?

Both models are evenly matched across the benchmarks. ChatGPT-4o Latest is made by OpenAI and Grok-3 Mini is made by xAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does ChatGPT-4o Latest compare to Grok-3 Mini in benchmarks?

ChatGPT-4o Latest scores GPQA: 84.0%. Grok-3 Mini scores AIME 2024: 95.8%, AIME 2025: 90.8%, GPQA: 84.0%, LiveCodeBench: 80.4%.

Is ChatGPT-4o Latest cheaper than Grok-3 Mini?

Grok-3 Mini is 8.3x cheaper for input tokens. ChatGPT-4o Latest costs $2.50/M input and $10.00/M output via openai. Grok-3 Mini costs $0.30/M input and $0.50/M output via xai.

What are the context window sizes for ChatGPT-4o Latest and Grok-3 Mini?

ChatGPT-4o Latest supports 128K tokens and Grok-3 Mini supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between ChatGPT-4o Latest and Grok-3 Mini?

Key differences include input pricing ($2.50 vs $0.30/M). See the full comparison above for benchmark-by-benchmark results.

Who makes ChatGPT-4o Latest and Grok-3 Mini?

ChatGPT-4o Latest is developed by OpenAI and Grok-3 Mini is developed by xAI.