Key Differences
- •Opus 4.7 has a larger context window (1M vs 400k tokens)
- •GPT-5.3 Codex has more recent training data (Aug 2025 vs May 2025)
- •GPT-5.3 Codex is more affordable for input ($1.75 vs $5.00/1M tokens)
- •GPT-5.3 Codex is more affordable for output ($14.00 vs $25.00/1M tokens)
- •Opus 4.7 is newer (released Apr 2026)
400k tokens
Context
1M tokens
Aug 2025
Knowledge
May 2025
Feb 2026
Released
Apr 2026
$1.75/1M
Input
$5.00/1M
$14.00/1M
Output
$25.00/1M
Both GPT-5.3 Codex and Opus 4.7 are available on Zo Computer. Try them both to see which one works best for your use case.