Vellum Integrations

Claude Opus 5 is Anthropic’s advanced everyday AI model built for coding, knowledge work, problem-solving, visual outputs, and production AI workflows. The model delivers stronger performance than Opus 4.8 at the same base price and is positioned as a cost-effective alternative close to Claude Fable 5 frontier intelligence. Claude Opus 5 supports configurable effort settings so users can optimize for intelligence, speed, or token efficiency. It performs especially well on software engineering, automation, computer use, scientific research, and knowledge work evaluations. The model is available on Claude Max, Claude Pro, Claude API, Claude Code, and other Claude platforms, with Fast mode available at a higher price. Built for developers, researchers, enterprises, and everyday Claude users, Claude Opus 5 helps teams complete complex tasks with stronger verification, careful iteration, and practical cost efficiency.

Claude Fable 5 is an advanced AI model from Anthropic designed to assist with software engineering, research, knowledge work, vision tasks, and complex reasoning. Built on the Mythos-class architecture, it delivers significantly improved performance across coding, analysis, and long-context workflows. The model can handle extended autonomous tasks while maintaining focus and consistency over large amounts of information. Claude Fable 5 integrates advanced reasoning, multimodal understanding, and memory capabilities to support professional and enterprise use cases. Anthropic has implemented specialized safeguards that automatically route certain high-risk cybersecurity, biology, chemistry, and model distillation requests to a different model. Claude Fable 5 helps organizations and professionals accelerate complex work while maintaining strong safety and governance controls.

Claude Opus 4.8 is a powerful AI model from Anthropic designed to deliver stronger coding, reasoning, agentic workflows, and advanced collaboration capabilities for developers, enterprises, and AI-powered productivity tasks. The model builds on Claude Opus 4.7 with improvements across coding benchmarks, practical knowledge work, alignment, and reliability while maintaining the same pricing structure. Claude Opus 4.8 introduces enhanced honesty and reasoning behavior, making it less likely to generate unsupported claims or overlook flaws during complex tasks such as software development and agent execution. The release also includes new features such as effort control settings, fast mode for lower-cost high-speed processing, and dynamic workflows in Claude Code that allow the system to coordinate hundreds of parallel subagents for large-scale tasks.

Facebook is the world's largest social network. We build technologies that help people connect with friends and family, find communities, and grow businesses. From fundraising to offering life-saving help in a Facebook post or signing up to donate blood, we’re inspired by the ways people show up for each other in times of need. The Facebook app helps you connect with friends, family and communities of people who share your interests. Connecting with your friends and family as well as discovering new ones is easy with features like Groups, Watch and Marketplace.

X (formerly Twitter) is a social networking and real-time communication platform that enables people, creators, businesses, and organizations to share ideas, news, media, and conversations with audiences around the world. Users can publish text posts, images, videos, live broadcasts, and long-form content while engaging through replies, reposts, direct messages, and communities. The platform includes AI-powered experiences such as Grok, creator monetization programs, premium subscriptions, live audio Spaces, and advanced analytics for eligible users. X also supports businesses with advertising, customer engagement, brand building, and community management tools. Available across web, desktop, and mobile devices, X connects millions of people through public conversations and real-time information sharing. By combining social networking, AI capabilities, creator tools, and business communication, X serves as a platform for discussion, content creation, and audience engagement.

Velt is a full-stack collaboration SDK that enables developers to embed rich, real-time, and asynchronous collaboration features into web applications with minimal effort. With Velt, you can add contextual comments (à la Figma or Google Docs), live presence indicators, shared editing, “follow me” view modes, and Slack/Meet-style huddles (audio, video, screen sharing). Velt also offers built-in Loom-style recording (screen, camera, or audio), complete with AI-powered transcription and auto-summaries, so users can leave video or voice feedback and later search or scrub to relevant bits. Additional collaboration tools include in-app notifications, mentions, reactions, arrows/highlights for annotation, analytics dashboards for tracking engagement, and flexible UI components you can style to match your app’s branding. It handles all the complexity, real-time syncing, conflict resolution (via CRDTs), offline handling, scaling, and optional self-hosting.