GPT-5.2 Pro

by OpenAI

GPT-5.2 Pro extends GPT-5.2 with additional compute for deeper reasoning on the hardest problems. It offers a 272,000-token context window along with vision, tool use, and structured outputs, putting more computational effort into thinking and planning before it responds. The variant suits high-stakes work where answer quality matters most, such as architecture design, complex analysis, and demanding agentic systems where thorough reasoning yields better outcomes.

Key info

Input
Output
Features
Context window
272K
Max output
128K
Input price
$21.00 /1M
Output price
$168.00 /1M
  • US residency available
  • Zero data retention via Enterprise
  • No training by default
  • GDPR DPA available

Available routes

GPT-5.2 Pro runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance β€” full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
OpenAIUSEnterpriseNo$21.00$168.00

Training posture across routes: No training on prompts by default.

Data handling per route

Each route hosting GPT-5.2 Pro has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

OpenAI β€” United StatesπŸ‡ΊπŸ‡Έ

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

Get started

Call GPT-5.2 Pro through the Opper gateway with one API key. Let your coding agent set it up, or call it directly β€” Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into your coding agent β€” Claude Code, Cursor, Codex, and more β€” and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "openai/gpt-5.2-pro",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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GPT-5.2 Pro by OpenAI β€” pricing, benchmarks | Opper AI