# system cards insights

Rangoon Insights reporting and guides tagged system cards.

Canonical: https://rangoon.ai/insights/tags/system-cards/

## Topics
- [Agent systems](https://rangoon.ai/insights/topics/agents/): Agent runtimes, handoffs, tools, and the boundaries that make them reviewable.
- [Governance](https://rangoon.ai/insights/topics/governance/): Policy, identity, authorization, approvals, and evidence for consequential work.
- [Infrastructure](https://rangoon.ai/insights/topics/infrastructure/): Model serving, sandboxes, tool services, and deployment boundaries.
- [Models](https://rangoon.ai/insights/topics/models/): Inference choices, local serving, compatibility, and operational tradeoffs.

## Stories
- [Claude Opus 4.5 made high-capability evaluation a cost-of-review question](https://rangoon.ai/insights/archive-anthropic-claude-opus-4-5-november-2025/)
  Anthropic introduced Claude Opus 4.5 on November 24, 2025, presenting a model for coding, agents, computer use, and complex professional tasks.
- [Claude Haiku 4.5 made small-model routing an evaluation and governance choice](https://rangoon.ai/insights/archive-anthropic-claude-haiku-4-5-october-2025/)
  Anthropic introduced Claude Haiku 4.5 on October 15, 2025, positioning a smaller model for speed-sensitive work and publishing a separate system card.


## More information

- [Documentation index](https://rangoon.ai/llms.txt)
- [AI access and policies](https://rangoon.ai/ai/)
- [Source repository](https://github.com/hypler-dev/rangoon)