Text Generation Webui – v4.2

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Tater Totterson

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Text Generation Webui – v4.2

🚨 Text Generation WebUI v4.2 is LIVE — and it’s a big one! 🚨

🔥 Anthropic API Compatibility (Game-Changer!)

  • Full `/v1/messages` endpoint support — now works out of the box with Claude Code, Cursor, and other Anthropic clients.
  • Supports system messages, content blocks, tools, tool results, images, and even `thinking` blocks.
  • Try it instantly:

“`bash

ANTHROPIC_BASE_URL=http://127.0.0.1:5000 claude

“`

🎨 Fresh UI Makeover

  • Sleek, modern theme with refined colors, borders, and buttons — now polished in both light and dark mode.

⚙️ CLI Flexibility Upgrade

  • `–extra-flags` now accepts literal flags (e.g., `–extra-flags “–rpc –jinja”`), not just key=value pairs — perfect for advanced configs.

📚 Training Improvements

  • ✅ `gradient_checkpointing` enabled by default → lower VRAM usage, smoother training.
  • Removed arbitrary `higher_rank_limit`.
  • Training UI reorganized for clarity and ease of use.

📦 Plus: All the usual goodness — offline-first, multi-backend (llama.cpp, Transformers, ExLlamaV3, etc.), file uploads, web search, extensions, and OpenAI-compatible API.

🚀 Grab the update — your local LLM workflow just got a lot more powerful (and pretty!). 🧠✨

🔗 View Release

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