IBM releases Granite Guardian 4.1 8B, a judge model for safety, RAG and agent checks
Apache-2.0 judge on Granite 4.1 8B with a hybrid reasoning mode. Covers harm, groundedness and function-calling hallucination, plus custom criteria.
Tagged judge-model
OpenAI releases gpt-oss-safeguard, open-weight safety reasoning models that read your policy
20b and 120b Apache-2.0 models that classify text against a policy you supply at inference time, with configurable reasoning effort.
Skywork releases Reward-V2, eight reward models from 0.6B to 8B
For context: Llama and Qwen3-based preference scorers trained on about 26 million pairs. The 8B card reports 96.4 on RewardBench v1.