AI Frontier Weekly2026-10-19Meta's first frontier model lands two points behind Claude Opus 5.5, and Gemini 4 Argon opens to subscribers1
AI Frontier Weekly2026-10-12Mistral previews a 1-trillion-parameter model, and Claude Haiku 5.5 costs 90% less2
AI Frontier Weekly2026-10-05Gemini 4 Argon tops a coding benchmark, and OpenAI shelves GPT-6.1 Astra2
AI Frontier Weekly2026-09-28Claude Opus 5.5 tops the index, GPT-6 prices halve, and OpenAI pauses training2
AI Frontier Weekly2026-09-21A no-name model tied GPT-6 Astra, and Claude now leads 26% of Anthropic's AI R&D
AI Frontier Weekly2026-08-06This Week in Frontier AI: Smaller Guardrails, Cheaper GPT-5.6, and a Sandbox Breach