Restore branded Platform showcase in README

[glenn-jocher]

Summary

Restore the Ultralytics visual identity and turn the HUB shutdown README into a concise, image-led Platform showcase instead of a documentation-style notice.

• Restore the full-width Ultralytics banner, badges, multilingual navigation, emojis, visual hierarchy, CTAs, and social footer.
• Lead with Platform's value, meaningful Free plan, and a direct Start with Ultralytics Platform action.
• Add simple Annotate, Train, and Deploy sections with current screenshots sourced from the existing Platform documentation assets.
• Keep the shutdown and completed Q2 2026 migration facts in one compact warning without letting them dominate the page.
• Apply the same branded experience to the English and Chinese READMEs.

Deleted: the sterile capability table, documentation-heavy transition steps, and text-only presentation that replaced the repository's established branding.

Validation

• Prettier 3.8.5
• Codespell
• git diff --check
• HTTP 200 verification for all four Platform screenshot assets

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

📢 Rebrands the HUB repository as a historical reference and directs users to the feature-rich Ultralytics Platform for annotation, training, and deployment.

📊 Key Changes

• Updates the English and Chinese READMEs to present Ultralytics Platform as the successor to HUB.
• Clarifies that HUB shut down on July 31, 2026, and that legacy HUB APIs and API keys no longer work.
• Adds Platform-focused descriptions for:
  • Browser-based annotation with Smart Annotation powered by SAM and YOLO models.
  • Cloud or remote training with experiment tracking and live metrics.
  • Model testing, export, and monitored inference endpoint deployment.
• Adds prominent links, badges, screenshots, translated documentation links, pricing information, and community resources.
• Removes legacy migration instructions and detailed HUB capability tables in favor of a concise Platform introduction.

🎯 Purpose & Impact

• 🚀 Helps former HUB users transition to the current Ultralytics Platform and find relevant documentation quickly.
• 🧭 Makes the repository’s status and the end of legacy HUB API support clear.
• 🛠️ Highlights an end-to-end computer vision workflow for data preparation, training, and deployment.
• 🌍 Improves discoverability through multilingual links, visual examples, and community support channels.
• 📚 Establishes the repository as historical documentation rather than an active location for HUB support or development.

[UltralyticsAssistant]

👋 Hello @glenn-jocher, thank you for submitting a ultralytics/hub 🚀 PR! This automated review has been created to help ensure a seamless integration. An engineer will assist with any follow-up items; please review the checklist below:

• ✅ Define a Purpose: Clearly explain the purpose of your fix or feature in your PR description, and link to any relevant issues. Ensure your commit messages are clear, concise, and adhere to the project's conventions.
• ✅ Synchronize with Source: Confirm your PR is synchronized with the ultralytics/hub main branch. If it's behind, update it by clicking the 'Update branch' button or by running git pull and git merge main locally.
• ✅ Ensure CI Checks Pass: Verify all Ultralytics Continuous Integration (CI) checks are passing. If any checks fail, please address the issues.
• ✅ Update Documentation: Update the relevant documentation for any new or modified features.
• ✅ Add Tests: If applicable, include or update tests to cover your changes, and confirm that all tests are passing.
• ✅ Sign the CLA: Please ensure you have signed our Contributor License Agreement if this is your first Ultralytics PR by writing "I have read the CLA Document and I sign the CLA" in a new message.
• ✅ Minimize Changes: Limit your changes to the minimum necessary for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." — Bruce Lee

For more guidance, please refer to our Contributing Guide. Don't hesitate to leave a comment if you have any questions. Thank you for contributing to Ultralytics! 🚀

[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

The two READMEs are consistently structured and the Platform screenshots, links, CTAs, and migration notice are well integrated. One blocking content regression remains: the leading banner is an unrelated YOLO event advertisement rather than Platform branding.

💬 Posted 1 inline comment

[UltralyticsAssistant]

🎉 Merged—thank you, @glenn-jocher, for this thoughtful update!

“The future belongs to those who prepare for it today.” — Malcolm X

By clearly positioning this repository as a historical reference and guiding users to the Ultralytics Platform, this PR makes the transition from HUB intuitive while showcasing a modern path from annotation to training and deployment. Your work improves clarity, discoverability, and the experience for the entire Ultralytics community. 🚀