Grok-1.5 vs Grok-3 Mini Comparison

Comparing Grok-1.5 and Grok-3 Mini across benchmarks, pricing, and capabilities.

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Grok-1.5 outperforms in 0 benchmarks, while Grok-3 Mini is better at 1 benchmark (GPQA).

Grok-3 Mini significantly outperforms across most benchmarks.

Sun Mar 22 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Cost data unavailable.

Lowest available price from all providers
Sun Mar 22 2026 • llm-stats.com
xAI
Grok-1.5
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
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

Only Grok-3 Mini specifies input context (128,000 tokens). Only Grok-3 Mini specifies output context (8,000 tokens).

xAI
Grok-1.5
Input- tokens
Output- tokens
xAI
Grok-3 Mini
Input128,000 tokens
Output8,000 tokens
Sun Mar 22 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-3 Mini supports multimodal inputs, whereas Grok-1.5 does not.

Grok-3 Mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-1.5

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.

Grok-1.5

Proprietary

Closed source

Grok-3 Mini

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-1.5 was released on 2024-03-28, while Grok-3 Mini was released on 2025-02-17.

Grok-3 Mini is 11 months newer than Grok-1.5.

Grok-1.5

Mar 28, 2024

2.0 years ago

Grok-3 Mini

Feb 17, 2025

1.1 years ago

10mo newer

Knowledge Cutoff

When training data ends

Grok-3 Mini has a documented knowledge cutoff of 2024-11-17, while Grok-1.5'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 Grok-1.5's cutoff date.

Grok-1.5

Grok-3 Mini

Nov 2024

Outputs Comparison

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Key Takeaways

Larger context window (128,000 tokens)
Supports multimodal inputs
Higher GPQA score (84.0% vs 35.9%)
xAIGrok-1.5
xAIGrok-3 Mini

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-1.5
xAI
Grok-3 Mini