frontier-models

Claude Sonnet 5: What's New, How It Benchmarks, and Where Claude Science Fits

Anthropic shipped Claude Sonnet 5, the Claude Science product, and a global-release clearance in one 48-hour window. Here's what actually changed for builders — capabilities and cost first, policy last.

07/02/2026 · Model Evaluation · 8 min read

GPT-5.6 "Sol" Explained: What's New, How It Compares to GPT-5, and Why the Rollout Is Restricted

OpenAI previewed GPT-5.6 "Sol" — then limited its rollout after a government request. Here's what's actually confirmed, what isn't yet, and what the restriction signals for frontier-model releases.

06/27/2026 · Industry Trends · 6 min read