OpenAI: gpt-oss-safeguard-20b

Extremely low cost at $0.075/$0.3 per 1M tokens, making high-volume moderation economically viable

Specialized safety classification likely outperforms general models on policy violation detection

Open-weights 20B architecture allows deployment flexibility and fine-tuning for domain-specific safety rules

128K context window supports moderating long documents or conversation threads in a single pass

Narrow specialization means it performs poorly on general coding, writing, or reasoning tasks compared to GPT-4o or Claude Sonnet 4.6

Not a general-purpose model — using it outside safety/moderation contexts will yield degraded results

Limited community documentation and benchmarks as an OSS safeguard model makes capability assessment uncertain