Timeline
Opus 5 achieves 0% prompt injection success rate in 129 browser agent tests with Auto Mode enabled
Anthropic's Claude Code became a leading agentic coding tool
Launched Claude Lite, a cost-efficient AI model for everyday tasks
Launched Claude Opus 5 with a shift toward fewer rules and trusting model judgment
Released Claude Opus 5 with 1M token context, 128k output, claiming Fable-5-approaching intelligence at half the price
Anthropic released Claude Opus 5, their newest Opus model, available in Claude Code
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
Anthropic
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, 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, 2026Cursor Trains GPT-Size Model with 10-20x Compute
Jun 21, 2026VC Analysis: Claude Code vs. Cursor Isn't Zero-Sum — The Market Is Expanding, Not Shrinking
Mar 10, 2026Anthropic Research Cuts Agent Misalignment With 7 System Prompt Lessons
May 12, 2026+ 7 more articles