Key Differences
- •GPT-5.1 has a larger context window (400k vs 262k tokens)
- •GPT-5.1 has more recent training data (Sep 2024 vs Jan 2024)
- •Kimi K2 Thinking is more affordable for input ($0.60 vs $1.25/1M tokens)
- •Kimi K2 Thinking is more affordable for output ($2.50 vs $10.00/1M tokens)
- •GPT-5.1 is newer (released Nov 2025)
400k tokens
Context
262k tokens
Sep 2024
Knowledge
Jan 2024
Nov 2025
Released
Sep 2025
$1.25/1M
Input
$0.60/1M
$10.00/1M
Output
$2.50/1M
Both GPT-5.1 and Kimi K2 Thinking are available on Zo Computer. Try them both to see which one works best for your use case.