Grok 4.1 Fast (Reasoning) vs GPT-5 mini (high)

Comparing 2 AI models · 5 benchmarks · xAI, OpenAI

Most Affordable
xAI logo
Grok 4.1 Fast (Reasoning)
$0.20/1M
Highest Intelligence
xAI logo
Grok 4.1 Fast (Reasoning)
85.3% GPQA
Best for Coding
OpenAI logo
GPT-5 mini (high)
51.4 Coding Index
Price Difference
1.3x
input cost range

Composite Indices

Intelligence, Coding, Math

Standard Benchmarks

Academic and industry benchmarks

Benchmark Winners

5 tests
xAI logo

Grok 4.1 Fast (Reasoning)

2
  • GPQA
  • MMLU Pro
OpenAI logo

GPT-5 mini (high)

3
  • HLE
  • LiveCodeBench
  • AIME 2025
Metric
xAI logo Grok 4.1 Fast (Reasoning)
xAI
OpenAI logo GPT-5 mini (high)
OpenAI
Pricing
Per 1M tokens
Input Cost $0.20/1M $0.25/1M
Output Cost $0.50/1M $2.00/1M
Blended Cost 3:1 input/output ratio
$0.28/1M $0.69/1M
Specifications
Organization Model creator
xAI OpenAI
Release Date Launch date
Nov 19, 2025 Aug 7, 2025
Performance & Speed
Throughput Output speed
69.0 tok/s
Time to First Token (TTFT) Initial response delay
16962ms