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3. Singleplayer Mode – Sign documents for free, with or without an account
4. Anise Health – Culturally responsive mental healthcare: free for 1 month
5. GPTs by OpenAI – Create your own ChatGPT
6. MassInbox – Mass cold email subscriptions for agencies and startups
7. Grok AI assistant – Conversational AI for understanding the universe
8. Keep React – React-powered web solutions with open-source UI components
9. Baked Design Studio – Product design subscription for startups founders & beyond
10. GPT-4 Turbo – More capable, cheaper and supports a 128K context window

Best of HackerNews

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3. openai.com – GPTs: Custom versions of ChatGPT
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5. github.com – Cicada – Open-source cross-platform version of GitHub Actions and Gitlab CI
6. twitter.com – FFmpeg is getting multithreaded transcoding pipelines
7. phys.org – Scientists create artificial protein that can degrade PET plastics in bottles
8. nytimes.com – Why banks are suddenly closing down customer accounts
9. beej.us – Beej's Quick Guide to GDB (2009)
10. google.com – Racket branch of Chez Scheme merging with mainline Chez Scheme