Culture · Products · Signal

Salt Index

There are more products, platforms and services than ever before.

OpenAI Codex vs AgentKit vs Apps SDK: Which DevDay 2025 Tool Should You Actually Use?

OpenAI Codex vs AgentKit vs Apps SDK: Which DevDay 2025 Tool Should You Actually Use?

OpenAI DevDay 2025 shipped Codex GA, AgentKit, and the Apps SDK on the same stage. Here is a decision framework for picking the right tool for coding automation, agent workflows, and ChatGPT-native apps.

Gemini 4 Argon vs GPT-6.1 Sol vs Claude Sonnet 5.5 and Opus 5.5: October 2026 Frontier Model Comparison

Gemini 4 Argon vs GPT-6.1 Sol vs Claude Sonnet 5.5 and Opus 5.5: October 2026 Frontier Model Comparison

We compare Gemini 4 Argon, GPT-6.1 Sol, Claude Sonnet 5.5, and Opus 5.5 on benchmarks, pricing, and real-world use cases in this October 2026 frontier model review.

ChatGPT vs Claude vs Gemini in 2026: Which AI Assistant Should You Actually Pay For?

ChatGPT vs Claude vs Gemini in 2026: Which AI Assistant Should You Actually Pay For?

We compare OpenAI, Anthropic, and Google's flagship AI assistants on coding, writing, research, pricing, and ecosystem fit.

Gemini 4 Argon vs Muse vs Dots: Comparing the Three AI Agent Platforms of October 2026

Gemini 4 Argon vs Muse vs Dots: Comparing the Three AI Agent Platforms of October 2026

Google's restricted frontier model, Meta's free viral agent, and OpenAI's paid Dots — which platform fits which use case?

Gemini 4 Argon vs GPT-6 Astra vs Claude Opus 5.5: What Early Benchmarks Actually Tell Buyers

Gemini 4 Argon vs GPT-6 Astra vs Claude Opus 5.5: What Early Benchmarks Actually Tell Buyers

A practical breakdown of frontier model benchmark scores and what they mean for real-world AI procurement.

OpenAI Dots vs Meta Muse: Which AI Agent Fits Your Workflow?

OpenAI Dots vs Meta Muse: Which AI Agent Fits Your Workflow?

OpenAI and Meta launched competing AI agents within weeks of each other. We compare capabilities, pricing, integrations, and safety controls.

Ray-Ban Meta Audio: Smart Glasses Without the Camera Get a Closer Look

Ray-Ban Meta Audio: Smart Glasses Without the Camera Get a Closer Look

Meta's camera-free Ray-Ban Meta Audio glasses offer music, calls, and Meta AI voice interaction — a privacy-conscious option in the smart glasses market.

The Index

Meta VR Glasses vs Apple Vision Pro: How 2026's AR Hardware Race Is Shaping Up

Meta VR Glasses vs Apple Vision Pro: How 2026's AR Hardware Race Is Shaping Up

Bitget Reopens Withdrawals After $387M Hack: What Users Should Know

Bitget Reopens Withdrawals After $387M Hack: What Users Should Know

Meta VR Glasses at $1,299: Specs, Tradeoffs, and How They Compare to Vision Pro

Meta VR Glasses at $1,299: Specs, Tradeoffs, and How They Compare to Vision Pro

Meta Connect 2026: Every Hardware Announcement, Price, and Release Date

Meta Connect 2026: Every Hardware Announcement, Price, and Release Date

Salt Index: How Meta Vibes Stacks Up Against the AI Video Landscape

Salt Index: How Meta Vibes Stacks Up Against the AI Video Landscape

Claude Opus 5.5 vs GPT-6 Sol: Which Frontier Model Should Developers Choose?

Claude Opus 5.5 vs GPT-6 Sol: Which Frontier Model Should Developers Choose?

Briefing

ChatGPT Mobile vs Anthropic: Which AI Assistant Wins the Cross-Device Workflow War?

ChatGPT Mobile vs Anthropic: Which AI Assistant Wins the Cross-Device Workflow War?

OpenAI and Anthropic are racing to own mobile-to-desktop AI workflows — we compare voice features, workspace design, and handoff capabilities.

iPhone 18 Pro vs Samsung Galaxy Z Fold 8: September 2026 Flagship Showdown

iPhone 18 Pro vs Samsung Galaxy Z Fold 8: September 2026 Flagship Showdown

Apple's iterative iPhone 18 Pro faces Samsung's foldable Galaxy Z Fold 8 in our September 2026 flagship comparison.

Claude Opus 5.5 vs GPT-6 Astra vs Grok 4.7: Which Frontier AI Model Should You Choose?

Claude Opus 5.5 vs GPT-6 Astra vs Grok 4.7: Which Frontier AI Model Should You Choose?

Three frontier models shipped within three weeks of each other. We compare pricing, benchmarks, and ideal workloads for each.

Googlebook Review: Is Google's $899 AI Laptop Worth the Hype?

Googlebook Review: Is Google's $899 AI Laptop Worth the Hype?

Google's new premium laptop line starts at $899 with built-in Gemini AI, 10 years of updates, and hardware from Acer, ASUS, Dell, HP, and Lenovo. We break down whether it delivers.