Key Differences
- •GPT-4.1 mini has a larger context window (1M vs 200k tokens)
- •Opus 4.5 has more recent training data (Mar 2025 vs May 2024)
- •GPT-4.1 mini is more affordable for input ($0.40 vs $5.00/1M tokens)
- •GPT-4.1 mini is more affordable for output ($1.60 vs $25.00/1M tokens)
- •Opus 4.5 is newer (released Nov 2025)
1M tokens
Context
200k tokens
May 2024
Knowledge
Mar 2025
Apr 2025
Released
Nov 2025
$0.40/1M
Input
$5.00/1M
$1.60/1M
Output
$25.00/1M
Both GPT-4.1 mini and Opus 4.5 are available on Zo Computer. Try them both to see which one works best for your use case.