Claude Sonnet 5 is Anthropic’s production-oriented frontier model for coding, business analysis, document work, tool use, browser agents, structured automation, and other applications that require greater intelligence than an economical high-volume model without incurring the full cost of Opus or Fable. The model combines a one-million-token context window, as many as 128,000 output tokens, text-and-image input, adaptive reasoning, function calling, structured outputs, prompt

ChatGPT Work is OpenAI’s agentic environment for professional assignments that require more than a conversational answer, allowing users to gather information from files and connected systems, complete several stages of analysis, and produce editable documents, spreadsheets, presentations, reports, dashboards, and lightweight web applications. The product differs from ordinary Chat because it is designed to maintain context across a longer workflow, continue through tool call

DarLink AI offers a free or basic access tier that allows adults to explore the platform before purchasing a subscription, although the company does not publish a stable numerical table explaining exactly how many free messages, coins, images, voice interactions, or roleplay sessions each account receives. The public website promotes a limited trial covering custom companion creation, chat, and image generation, which makes free access sufficient for testing the interface, ev