GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
Rank
#423
Up 67% week over week
Tokens
1.6M
2026-08-15
Requests
80
80
Tool calls
-
Input / M
$1.25
Output / M
$7.50
Cache / M
$0.13
Context
1.1M
1,050,000 tokens