GPT-5.2
OpenAI's flagship model for coding and agentic tasks. Highest reasoning capability with 400k context.
ReasoningVisionToolsStructured output
Context window
272K
Max output
128K
Input price
$1.75 /1M
Output price
$14.00 /1M
Benchmarks
Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Intelligence Index51.3
Coding Index48.7
Math Index99.0
MMLU-Pro
87%
GPQA Diamond
90%
Humanity's Last Exam
35%
LiveCodeBench
89%
SciCode
52%
AIME 2025
99%
IFBench
75%
Long-context reasoning
73%
Terminal-Bench Hard
47%
τ²-Bench Telecom
85%
See full leaderboard →Benchmarks via Artificial Analysis · View on AA
Available routes
The same GPT-5.2 runs on 1 route through the Opper gateway. Each route has its own data-handling posture.
| Provider | Region | Zero data retention | Training | Logging | Contract | Input | Output |
|---|---|---|---|---|---|---|---|
| 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 | $1.75 | $14.00 |
Human review: Abuse-flagged only