AccuKnox Inc. releases Guard 1.1, an Apache-2.0 guardrail for agent inputs and prompt injection
A 4.5B guard fine-tuned from a Qwen3.5-4B base that returns a block probability. The card reports 0.802 on a 27,416-item safety set.
Tagged guard-model
AI Singapore releases Gemma-SEA-LION-Guard v2, MIT-licensed safety models for Southeast Asian languages
A 31B decision model (plus E4B and E2B) for content moderation and action governance across eight languages. Scores AUPRC 93.5 on general safety.
Mistral AI releases Shieldstral 1.0, a 3B multimodal safety classifier under Apache 2.0
Shieldstral judges text or images against a policy you write and returns an unsafe score. Reported best F1 on several benchmarks; Apache-2.0.
NVIDIA releases Nemotron 3.5 Content Safety, a 4B multilingual moderation classifier
Gemma-3-4B-based, 12 languages, text plus one image, with custom-policy mode. Open licence plus Gemma terms; card dated 2 June 2026.
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.
NVIDIA releases Nemotron 3 Content Safety, a 4B moderation classifier on Gemma-3
Predecessor to 3.5: 4B, 12 languages, 23 safety categories. Released 16 March 2026 under the NVIDIA open model licence plus Gemma terms.
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.
Qwen releases Qwen3Guard, multilingual moderation models in 0.6B, 4B and 8B
Apache-2.0 safety classifiers covering 119 languages with Safe, Controversial and Unsafe levels; Stream variants are also on the Hub.
Meta releases Llama Guard 4, a 12B multimodal safety classifier
For context: a dense 12B pruned from Llama 4 Scout that screens prompts and responses across 14 MLCommons hazard categories. Gated under the Llama 4 licence.