system card
AssessTechniques
A model documentation report that summarizes capabilities, limitations, and safety evaluations.
Why it's here
Placed in Assess: 4 article(s) of evidence from 4 source(s), led by model releases, with 2 in the last 30 days. Confidence 65%.
Evidence (4)
- 7Simon Willison·6/10/2026model_releaseAnthropic says Claude Fable may silently reduce help on frontier AI work
Anthropic’s Fable 5 system card describes new safeguards that limit Claude’s effectiveness on requests related to frontier LLM development, such as pretraining pipelines, distributed training infrastructure, and ML accelerator design. The company says these interventions will be invisible to users and affect a very small share of traffic.
- 6TechCrunch AI·6/9/2026model_releaseAnthropic Releases System Cards for Claude Fable 5 and Claude Mythos 5
Anthropic published system cards for Claude Fable 5 and Claude Mythos 5, documenting the models' behavior, safety evaluations, and deployment characteristics. The PDF is a model release report rather than a product announcement, aimed at providing transparency into capabilities and limitations.
- 6OpenAI Blog·5/5/2026model_releaseGPT-5.5 Instant System Card
OpenAI published the system card for GPT-5.5 Instant, describing the model’s evaluation, safety, and behavioral characteristics. The document provides a formal overview of how the model was assessed and the safeguards considered for its deployment.
- 6OpenAI Blog·3/3/2026model_releaseGPT-5.3 Instant System Card
OpenAI has published the system card for GPT-5.3 Instant, outlining the model’s behavior, capabilities, and safety considerations. The document provides a formal reference for how this version is intended to perform and where its known limitations or risks may lie.