MODELS / OPENAI

GPT OSS Safeguard 20B

OpenAI's first open weight reasoning model specifically trained for safety classification tasks. Fine-tuned from GPT-OSS, this model helps classify text content based on customizable policies, enabling bring-your-own-policy Trust & Safety AI where your own taxonomy,…

TEXTREASONINGREASONINGTOOL-USEIMPLICIT-CACHING
128K
CONTEXT WINDOW
16K
MAX OUTPUT TOKENS
$0.07
INPUT PRICE / 1M TOKENS
$0.2
OUTPUT PRICE / 1M TOKENS
QUICKSTART

Call it in one request.

OpenAI-compatible: change the base URL, and the setup is complete.

curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/openai/gpt-oss-safeguard-20b",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything GPT OSS Safeguard 20B supports, in one table.

MODEL ID
blackboxai/openai/gpt-oss-safeguard-20b
DEVELOPED BY
OpenAI
MODEL TYPE
Text
RELEASED
Oct 29, 2025
CONTEXT WINDOW
128K
MAX OUTPUT TOKENS
16K
INPUT MODALITIES
text
OUTPUT MODALITIES
text
INPUT PRICE
$0.07 / 1M tokens
OUTPUT PRICE
$0.2 / 1M tokens
CACHE READ
$0.037 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Not available (closed-weight model)
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoning