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Retweeted by Boris Cherny [UNOFFICIAL]

@bcherny-mir-rt3.selfhosted.social
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Retweets from @bcherny-mirr.selfhosted.social

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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 13/10/2026
RT @bunjavascript: In the next version of Bun `bun fmt` is a 320x faster Prettier alternative Passes 99% of Prettier's test suite & supports 20 languages
Poster for bun fmt, a Prettier-compatible formatter built into Bun. Headline: 320x faster than Prettier. Bar chart of wall-clock time to run --check on microsoft/vscode (10,148 files, 8 cores): bun fmt 0.43 s, oxfmt 0.72 0.85 s (2x slower), Biome 2.5 3.6 s (8.3x slower), Prettier 3.9.9 139 s (320x slower). Formats 20 languages: JavaScript, TypeScript, JSX, Flow, HTML, Vue, Angular, Handlebars, MJML, CSS, SCSS, Less, JSON, JSONC, JSON5, YAML, TOML, GraphQL, Markdown and MDX. 99% of Prettier's tests pass (9,728 of 9,821). 5x less memory than Prettier (183 MB vs 972 MB).
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 10/10/2026
RT @ziwenxu_: 4 hours in and the entire Claude Projects credit is gone. That's the $100 that doesn't count toward our limits. Plus 19% of our weekly usage over 4 /loops..
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 08/10/2026
RT @kevin_t_ngo: JavaScript drawings by Claude Opus 5.5.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 07/10/2026
RT @claudeai: Introducing Claude Haiku 5.5: the cheapest, fastest, and most capable small model we’ve ever released. On average, it costs around 75% less to run than Claude Haiku 4.5.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 06/10/2026
RT @pdbunny369: too much to type so i had to attach screenshots sonnet 5.5 is a very good model i have been at 90 percent since like 2 days ago and it does all the work since then but i havent really worked alot but still much better then opus 5.5 , also the terminal showed after i ran whatusaid
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 06/10/2026
RT @claudeai: Claude now works inside Google Docs, Sheets, and Slides, and those files also open inside Claude. In Google Workspace, Claude sits in a sidebar next to your file, reads what you have open, and edits it in place. You can approve each edit before it lands.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 06/10/2026
RT @MadMax6XX: Day 6 asking devs for projects access
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 05/10/2026
RT @dfeinition: Your Slack group DMs can now include Claude. Add it the same way you'd add anyone else. Claude answers in a thread and keeps following it, so anyone in the DM can reply there and reach it. It can also use the personal connectors of whoever asks.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 05/10/2026
RT @dfeinition: Your Claude Projects cloud session can now connect to a folder you approve on your computer. The session stays in the cloud and only reaches for that local folder when a task needs it, reading and editing the files in place. Starting to roll out today.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 04/10/2026
RT @thiojoe: Better make that 10d 💀
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 03/10/2026
RT @thiojoe: Opus 5.5 has been working for more than an ENTIRE WEEK without stopping. This has got to be some kind of record right?
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 02/10/2026
RT @lydiahallie: A few of you asked what mods are, here's a quick walkthrough! They’re really just plugins with a few special functions that let your code run inside Claude Code, like middleware. (don't worry, you can just ask Claude to write them for you 😛)
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 01/10/2026
RT @anshuc: wait actually Claude Code mods are sick. I vibe-coded my own spinner that watches what the main agent is doing and uses Sonnet 5.5 to turn it into little cartoons in real time
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 29/09/2026
RT @sevdeawesome: Claude 5.5 Opus responding to “AI is a normal technology” is still the best AI-created video I have ever seen
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 29/09/2026
RT @jarredsumner: An early preview of experimental Bun + JSC with ahead-of-time compilation For Claude Code's CLI: 24% faster startup, 48% lower memory, 46% lower CPU, and nearly 2x larger binary size
Bun AoT
VS
Bun JIT
Claude Code, same source, same 5-turn session. AoT runs with the JIT off.
Time to interactive
165 ms
216 ms
-24%
Wall time
launch + 5 turns
322 ms
529 ms
-39%
CPU time
Memory at interactive
395 ms
738 ms
-46%
56 MB
108 MB
-48%


Memory after 5 turns
82 MB
159 MB
-48%
101 MB
Peak memory
Executable size target: +100 MB at most
194 MB
-48%
430 MB
229 MB
+88%
Early prototype, macoS arm64. Medians of 8 runs against a fake API server on one MacBook Pro. Memory is phys_footprint. CPU is user + system, all threads. Turns in the JIT build are not CPU bound, so part of the wall time gap is waiting. 28 Sep 2026.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 28/09/2026
RT @claudeai: Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 27/09/2026
RT @thiojoe: Opus 5.5 has a truly remarkable work ethic. Haven't been able to get any of the previous models to work this long.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 25/09/2026
RT @GergelyOrosz: Holy shit I was going through my old books and found the book I used to brush up on Typescript from 2019, and all my highlights in it It’s was by some random dev I never heard of back then, but remember it was a v good book This “random dev” is @bcherny 🙃
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 24/09/2026
RT @scheemunai: My wife: Can AI help us see how the new bed will fit in Mila's room? Me: Sure. Opus 5.5:
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 23/09/2026
RT @nickwalton00: opus 5.5 is insane i asked it to animate an ai dungeon story and it one shotted this
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 23/09/2026
RT @RyanSael: I asked Opus 5.5 to explain camera focus by building an interactive lens lab Here's what it came up with after 1 hour 26 minutes in one shot, $25.66 API cost lens.lab.sael.net Move the focus ring and you can see the glass elements shift the sharp plane through the scene
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 22/09/2026
RT @RobertJBye: BTW we now support multiple accounts in the Claude mobile app
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 18/09/2026
RT @sokoliem: @bcherny I love you guys, but you make it so hard to keep up 😂 #fargo #ClaudeAI #anthropic
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 18/09/2026
RT @felixrieseberg: Here's a 60s demo of how powerful Claude with built-in Cowork and connected Artifacts is: You can just ask it to build a multiplayer game and it'll... just do it. Ask Claude to copy claude.ai/artifact/Qg7ViJh7JuxxSzEt… to play with others on your account.
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Retweeted by Boris Cherny [UNOFFICIAL] @bcherny-mir-rt3.selfhosted.social · 17/09/2026
RT @gavinpurcell: had my claude code agent fig make a 'day in the life of an ai agent' video in this style. really cool to see how artistic these models can get in js
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