Claude Sonnet 3.7
claude-sonnet-3-7-ee4e4073·2 events·first seen 15d agoAliases: Claude Sonnet 3.7
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Mistral Medium 3: Frontier-Class Performance at 8x Lower Cost
Mistral AI has released Mistral Medium 3, a new enterprise-focused language model priced at $0.4/$2 per million input/output tokens. The model claims to achieve 90%+ of Claude Sonnet 3.7's benchmark performance while undercutting cost leaders like DeepSeek v3, and outperforming open models including Llama 4 Maverick. It supports hybrid, on-premises, and in-VPC deployment on as few as four GPUs, and is available immediately on Mistral La Plateforme and Amazon SageMaker, with additional cloud platforms coming soon. The announcement also teases an upcoming large open-weights model release.
Anthropic activates ASL-3 safety protections for Claude Opus 4 launch
Anthropic has activated its AI Safety Level 3 (ASL-3) Deployment and Security Standards in conjunction with launching Claude Opus 4, marking the first time any Anthropic model has been deployed under ASL-3 rather than the baseline ASL-2. The activation is described as precautionary: Anthropic has not conclusively determined that Opus 4 crosses the ASL-3 capability threshold, but cannot rule it out due to continued improvements in CBRN-related knowledge. ASL-3 measures include Constitutional Classifiers to block end-to-end CBRN weapon development workflows and enhanced model-weight security against sophisticated non-state attackers. Claude Sonnet 4 was evaluated and cleared for ASL-2, and ASL-4 was ruled out for Opus 4.