Key Differences
- •GPT-4.1 mini has a larger context window (1M vs 400k tokens)
- •GPT-5.1 Codex mini has more recent training data (Sep 2024 vs May 2024)
- •GPT-5.1 Codex mini is more affordable for input ($0.25 vs $0.40/1M tokens)
- •GPT-4.1 mini is more affordable for output ($1.60 vs $2.00/1M tokens)
- •GPT-5.1 Codex mini is newer (released Nov 2025)
1M tokens
Context
400k tokens
May 2024
Knowledge
Sep 2024
Apr 2025
Released
Nov 2025
$0.40/1M
Input
$0.25/1M
$1.60/1M
Output
$2.00/1M
Both GPT-4.1 mini and GPT-5.1 Codex mini are available on Zo Computer. Try them both to see which one works best for your use case.