Ten new model checkpoints were uploaded to HuggingFace over the past day. Highlights include:

  • Forsy-AI/agent-apprenticeship — An ecosystem where AI agents learn from real-world work through iterative workflow loops. 867 stars.
  • sums001/Windows-Copilot-API — Reverse-engineered Windows Copilot exposed as an OpenAI-compatible API, letting you call GPT-4 and GPT-5 models. 552 stars, Python.
  • yo-WASSUP/Good-Badminton — AI-powered badminton Hawk-Eye system. 428 stars, Python.
  • raiyanyahya/recall — Gives Claude Code durable project memory so users stop wasting tokens re-explaining context every session. 418 stars, Python.
  • Karovia/fullstack-ai-agent-roadmap — A Chinese-language, Obsidian-friendly roadmap to becoming a full-stack AI Agent engineer: 110 tutorials, 580k characters, 400+ curated projects. 146 stars.

Limited-Time Free Models on OpenRouter

Two models are currently free on OpenRouter, both expiring in 4 days:

  • Anthropic: Claude Opus 4.6 (Fast) — 1M context window. Free until 2026-06-29. Standard pricing after promo: $30/M prompt, $150/M completion tokens.
  • StepFun: Step 3.5 Flash — 262K context. Free until 2026-06-29. Standard pricing after promo: ~$0.09/M prompt, ~$0.30/M completion tokens.

That’s all for today’s AI news roundup — 17 items total across HuggingFace, GitHub, and OpenRouter.