Claude.ai
The official interactive platform for Anthropic's Claude AI, offering features including conversation, project management, file upload, model selection, and Research capabilities. The platform is designed for individual users and enterprise knowledge workers.
Timeline (last 90 days)
research-ledger also supports running in Claude.ai (uploading the compressed folder) and Codex (the folder contains agents/openai.yaml).
The scope of the problem covered five product lines: Claude API, Claude.ai, Claude Code, Claude Security and Claude Cowork.
Anthropic's full line of Claude products experienced a service outage lasting about two hours in 2025, from problem reporting to full recovery, affecting Claude.ai web, desktop, mobile, Claude Code, Claude Cowork, and the Claude API.
Claude.ai's Projects feature can organize related conversations together and maintain persistent context and custom instructions
Claude.ai's Artifacts feature can transform ideas into shareable applications, tools, or content, such as HTML pages, interactive data visualizations, or neatly formatted documents
Cloud Projects is a project-level conversation container provided by the Claude.ai platform that supports retaining context across sessions, uploading multiple files as a knowledge base, and configuring a dedicated claude.md instruction file.
Regular Claude.ai web users currently cannot directly use the Instance Level MCP connection method and need to use Claude Code or other tools that support the MCP client protocol (such as Cursor or Continue)
Anthropic sped up the core user experience of Claude.ai and the Claude desktop app by approximately 3x within two weeks
Measured at the 75th percentile, Claude.ai's initial load dropped from 3.1 seconds to 0.55 seconds, starting a new Claude Code session dropped from 0.8 seconds to 0.3 seconds, and loading a Claude co-work session dropped from nearly 3 seconds to under 1 second
Theo found through real-world testing that Claude.ai has a data consistency issue: after deleting a session in one browser, refreshing another browser still displays the deleted session, and clicking on it throws an error without re-validating the sidebar
All Facts (11)
Claude.ai基于通用训练数据回答问题，而Claude Code基于项目中实际存在的代码提供回答
60%Unverifiedresearch-ledger also supports running in Claude.ai (uploading the compressed folder) and Codex (the folder contains agents/openai.yaml).
50%UnverifiedThe scope of the problem covered five product lines: Claude API, Claude.ai, Claude Code, Claude Security and Claude Cowork.
50%UnverifiedClaude.ai's Artifacts feature can transform ideas into shareable applications, tools, or content, such as HTML pages, interactive data visualizations, or neatly formatted documents
50%UnverifiedClaude.ai's Projects feature can organize related conversations together and maintain persistent context and custom instructions
50%UnverifiedCloud Projects is a project-level conversation container provided by the Claude.ai platform that supports retaining context across sessions, uploading multiple files as a knowledge base, and configuring a dedicated claude.md instruction file.
50%UnverifiedRegular Claude.ai web users currently cannot directly use the Instance Level MCP connection method and need to use Claude Code or other tools that support the MCP client protocol (such as Cursor or Continue)
50%UnverifiedAnthropic sped up the core user experience of Claude.ai and the Claude desktop app by approximately 3x within two weeks
50%UnverifiedTheo found through real-world testing that Claude.ai has a data consistency issue: after deleting a session in one browser, refreshing another browser still displays the deleted session, and clicking on it throws an error without re-validating the sidebar
50%UnverifiedMeasured at the 75th percentile, Claude.ai's initial load dropped from 3.1 seconds to 0.55 seconds, starting a new Claude Code session dropped from 0.8 seconds to 0.3 seconds, and loading a Claude co-work session dropped from nearly 3 seconds to under 1 second
50%UnverifiedAnthropic's full line of Claude products experienced a service outage lasting about two hours in 2025, from problem reporting to full recovery, affecting Claude.ai web, desktop, mobile, Claude Code, Claude Cowork, and the Claude API.
50%