
Faster Agents, Skewed Evals, and Brand Bias in LLMs
Three new papers: agents that compile runs into 8-13x faster state machines, benchmark scores that shift with compute budget, and big brands monopolizing LLM recommendations.
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Three new papers: agents that compile runs into 8-13x faster state machines, benchmark scores that shift with compute budget, and big brands monopolizing LLM recommendations.

GPT-5.5 is OpenAI's first completely retrained base model since GPT-4.5, leading the field on agentic coding and computer use - but the doubled per-token pricing and delayed API access require careful evaluation.

OpenAI's first fully retrained base model since GPT-4.5 ships today to ChatGPT and Codex, leading on Terminal-Bench 2.0 at 82.7% with a doubled per-token price.

OpenAI's first fully retrained base model since GPT-4.5, targeting agentic coding, computer use, and knowledge work at $5/$30 per million tokens.

Meta is installing monitoring software on U.S. employee computers to capture keystrokes, mouse movements, and screenshots for training computer-use AI agents.

OpenAI's April 16 Codex update adds background computer use on Mac, an Atlas-based in-app browser, gpt-image-1.5 image generation, and 111 new plugins - moving the app far beyond agentic coding.

A hands-on comparison of the best AI browser agents in 2026 - Perplexity Comet, Dia, Opera Neon, Chrome Gemini, Brave Leo, Fellou, and more - rated on agentic task depth, privacy, price, and platform support.

Anthropic's mid-tier model matches Opus 4.6 on computer use, leads all models on office productivity tasks, and costs five times less than the flagship at $3/$15 per million tokens.

Rankings of the best AI models and agent frameworks on computer use benchmarks - OSWorld, OSWorld-Verified, and ScreenSpot-Pro - updated March 2026.

GPT-5.4 brings native computer use, a 1M token context window, and serious coding muscle to OpenAI's mainline model - but at a premium price.

GPT-5.4 leads on computer use and enterprise productivity. Gemini 3.1 Pro leads on science reasoning and math at 20% lower cost. A benchmark-by-benchmark comparison.

GPT-5.4 leads on computer use and enterprise productivity at half the price. Claude Opus 4.6 leads on coding, agent teams, and long-context retrieval. Here is where each model wins.