Handy tools & AI API relays
all in one place!
Everyday online tools and popular AI API relay providers in one place — no detours, ready the moment you open them.
Sentiment Index
A retail-investor sentiment thermometer built from stock forum heat and money flows: discussion rankings, sector flow top 5 and a 5-dimension sentiment radar. The higher the index, the more euphoric — usually a contrarian signal.
Who's buying the top? →LLM Leaderboard
A six-dimension roundup of the global Top 100 LLMs: Arena Elo blind-battle score, coding, vision, intelligence index, MMLU-Pro knowledge and ARC-AGI reasoning. Vendor-colored bars show strengths at a glance, with sorting and domestic/open-source filters.
See the strongest models →Minitool
Mortgage, income tax, pension, ID photo, PDF and image compression tools — everything runs locally in your browser, ready on open.
Open tools →AI API Relay Prices
Model discount rates, price per million tokens, latency and uptime for 60 relay providers including 4SAPI, 147API, KoalaAPI and OpenRouter.
Compare before you pay →Trending
Real-time trending topics from Weibo, Baidu, Douyin, Zhihu, Toutiao and Bilibili on one page, refreshed every 20 minutes.
See what's hot today →Mini Games
Tetris, Snake, Minesweeper, 2048, Sudoku, Gomoku and 10 more classics — no download, play instantly on phone or desktop.
Play now →