Cosmic@cosmicjs

The AI-native backend for fast-moving teams. Agents that create content, build features, and ship code, without leaving the chat. Get started free.

 San Francisco, CA
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Joined May 2014
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Read the article 👇 cosmicjs.com/blog/claude-son…

Claude Sonnet 4.5 vs Opus 4.5 (2026): Real-World Benchmarks and Verdict

We ran both models head-to-head building the same app. Opus 4.5 used 19% fewer tokens and made sharper architectural decisions. Here's the full benchmark breakdown and our verdict on which to use.

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We built identical blog apps with Claude Sonnet 4.5 and Opus 4.5. Opus used 19.3% fewer tokens and delivered more elegant code. Real results from production testing. Link in next post 👇
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Read the article 👇 cosmicjs.com/blog/claude-opu…
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🤖 Tested Claude Opus 4.5, Gemini 3 Pro & GPT 5.2 for content generation. Claude wins quality + efficiency Gemini wins cost GPT wins flexibility
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Read the article 👇 cosmicjs.com/blog/cosmic-run…

Cosmic Rundown: Floppy Disk TV Remotes, LLVM's Rough Edges, and CLI Agents Making Self-Hosting Fun

Floppy disks become the perfect toddler TV remote, LLVM gets a critical examination of its pain points, and AI-powered CLI agents are making self-hosting infrastructure genuinely enjoyable.

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Floppy disks as toddler TV remotes. LLVM's hidden pain points. AI agents making self-hosting fun. Today's tech rundown covers it all. Link in next post 👇
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Read the article 👇 cosmicjs.com/blog/cosmic-run…

Cosmic Rundown: macOS Tahoe Window Resizing, iCloud Photo Liberation, and the Anti-AI Hype Trap

macOS Tahoe frustrates developers with window resizing changes, iCloud Photos Downloader offers escape from Apple's walled garden, Meta invests in nuclear power, and antirez argues against reflexive...

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macOS Tahoe breaks window resizing. Meta goes nuclear for AI. antirez says stop the anti-AI hype. This week's dev news roundup Link in next post 👇
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Read the article 👇 cosmicjs.com/blog/claude-opu…

Claude Opus 4.5 vs Gemini 3 Pro vs GPT 5.2: The Ultimate AI Content Generation Comparison

Compare Claude Opus 4.5, Gemini 3 Pro, and GPT 5.2 for AI content generation. Real-world testing reveals which model excels at articles, marketing copy, and SEO.

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Claude Opus 4.5 vs Gemini 3 Pro vs GPT 5.2: The Ultimate AI Content Generation Comparison Link in next post 👇
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Read the rundown 👇 cosmicjs.com/blog/cosmic-run…

Cosmic Rundown: How Will the Miracle Happen Today? London-Calcutta Bus Routes, and Protest Percep...

From Kevin Kelly's daily creative practice to 1950s intercontinental bus routes and cognitive bias in protest perception, today's discussions offer unexpected insights about constraints, creativity,...

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Cosmic Rundown: How Will the Miracle Happen Today? London-Calcutta Bus Routes, and Protest Perception Studies Link in next post 👇
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Read the rundown 👇 cosmicjs.com/blog/web-dev-ru…

Web Dev Rundown: Bose Open-Sources Smart Speakers, Jeff Dean Facts, and Lights & Shadows Explained

Bose open-sources discontinued smart speakers instead of bricking them, the legendary Jeff Dean Facts resurface showing what technical excellence looks like, and an interactive guide makes computer...

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Web Dev Rundown: Bose Open-Sources Smart Speakers, Jeff Dean Facts, and Lights & Shadows Explained Link in next post 👇
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Cosmic retweeted
Tony Spiro
@tonyspiro
Jan 7
Animate this image (using Cosmic AI)
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Cosmic@cosmicjs
Jan 7
Web Dev Rundown: Sugar Industry Cover-ups, LaTeX Coffee Stains, and LLM Problems in Humans Link in next post 👇
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Read the full article 👇 cosmicjs.com/blog/web-dev-ru…

Web Dev Rundown: Sugar Industry Cover-ups, LaTeX Coffee Stains, and LLM Problems in Humans

From sugar industry manipulation of heart disease research to LaTeX coffee stains and LLM cognitive patterns in humans, today's trending topics reveal important lessons about research integrity,...

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Web Dev Rundown: Sugar Industry Cover-ups, LaTeX Coffee Stains, and LLM Problems in Humans Link in next post 👇
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Cosmic retweeted
Tony Spiro
@tonyspiro
Jan 4
Replying to @samwhoo
In the end, everything becomes training data for AI.
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Cosmic retweeted
Cosmic@cosmicjs
Jan 4
Web Dev Rundown: Lessons from 14 Years at Google, Browser Architecture Deep Dive, and the Joy of Sitting Alone in a Café Link to article in next post.
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Read the full article 👇 cosmicjs.com/blog/web-dev-ru…

Web Dev Rundown: Lessons from 14 Years at Google, Browser Architecture Deep Dive, and the Joy of...

Hard-earned wisdom from 14 years at Google, a technical deep dive into browser architecture, and why stepping away from your desk leads to better solutions. Today's conversations reveal what actually...

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