GPT-5.4 Nano
GPT-5.4 Nano via Azure OpenAI
VisionToolsStructured output
Context window
272K
Max output
128K
Input price
$0.20 /1M
Output price
$1.25 /1M
Benchmarks
Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Intelligence Index44.0
Coding Index43.9
GPQA Diamond
82%
Humanity's Last Exam
27%
SciCode
47%
IFBench
76%
Long-context reasoning
66%
Terminal-Bench Hard
42%
τ²-Bench Telecom
76%
See full leaderboard →Benchmarks via Artificial Analysis · View on AA
Available routes
The same GPT-5.4 Nano runs on 2 different routes through the Opper gateway. Each route has its own data-handling posture.
| Provider | Region | Zero data retention | Training | Logging | Contract | Input | Output |
|---|---|---|---|---|---|---|---|
| Azure OpenAI | EU | Opt-in | No | Up to 30 days for abuse monitoring | EA/MCA-E | $0.20 | $1.25 |
| OpenAI | US | Opt-in | No (opt-in) | Up to 30 days for abuse monitoring on stateless endpoints. Stateful endpoints (Conversations, ChatKit, Vector Stores) retain until deleted. | Enterprise | $0.20 | $1.25 |
Human review: Abuse-flagged only