GPT OSS Safeguard 20B is an open-weight reasoning model released by OpenAI as a research preview under the Apache 2.0 license, fine-tuned from GPT-OSS 20B for safety classification. It interprets developer-provided policies at inference time, classifying user messages, model completions, and full conversations against custom definitions. The model uses chain-of-thought reasoning, which developers can inspect, to generalize across diverse policy scenarios with minimal retraining. It supports configurable reasoning effort (low, medium, high) and structured outputs for programmatic integration, covering input and output filtering, online content labeling, and offline batch review. Because it lets teams bring their own taxonomy, definitions, and thresholds, GPT OSS Safeguard 20B suits trust and safety workflows that need adaptable, transparent moderation rather than fixed classifiers.
Call GPT OSS Safeguard 20B on Opper with the OpenAI SDK. Sign up without a credit card. Get started
GPT OSS Safeguard 20B runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read |
|---|---|---|---|---|---|---|
| US | No | $0.07 | $0.30 | $0.04 |
GPT OSS Safeguard 20B runs on a single route through the Opper gateway today, so its availability is that provider's availability.
Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.
Each route hosting GPT OSS Safeguard 20B has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; SCCs; DPA available.
Call GPT OSS Safeguard 20B through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.
GPT OSS Safeguard 20B is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
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: "groq/gpt-oss-safeguard-20b",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
Side-by-side on privacy, EU hosting, pricing, and benchmarks.
