Timeline
Open-source plugin 'dont-let-me' released for Claude Code, Codex, and OpenCode
Claude Code now ships with Plan mode as a first-class safety rail for cross-file refactors
Claude Code skills feature introduced, allowing reusable instruction packs in ~/.claude/skills/
Plan mode and CLAUDE.md/skills introduced for Claude Code
Claude Code's Plan mode introduced as a safety rail for cross-
Claude Code adds iOS Simulator support for building and testing iOS apps from the terminal
Cursor doubled included model usage on all plans and added Grok 4.5 and Composer 2.5 without price changes.
Trained a GPT-size model from scratch, shifting from fine-tuning to pretraining for code generation.
Announced new Composer model powered by a GPT-size model trained from scratch with 10-20x more compute.
Was on track to close a $2B funding round from a16z, Thrive, and Nvidia before acquisition.
Ecosystem
Cursor
Claude Code
Benchmarks
Evidence (15 articles)
Anthropic Targets $900B Valuation in $50B Funding Round
May 8, 2026The AI Code Editor War: How Cursor's Subsidized Model Could Redefine Software Development
Mar 9, 2026The 2026 CLAUDE.md Playbook: 8 Rules That Make Your Agent 2x More Effective
Apr 27, 2026CLAUDE.md Explained: How Anthropic's Agent Memory Works
May 12, 2026The Hidden Economics of AI: How Anthropic's Massive Subsidies Are Reshaping the Coding Assistant Market
Mar 7, 2026Stop Getting 'You're Absolutely Right!' from Claude Code: Install This MCP Skill for Better Technical Decisions
Mar 20, 2026k-dense Ships 150 Open-Source Scientific Agent Skills
Jul 26, 2026Epoch AI's CursorBench Benchmarks AI Code Editing at Scale
Jun 27, 2026+ 7 more articles