AI discovery: 2026/05

01.05.2026 – 31.05.2026

Product

• Anthropic releases Claude Opus 4.8 on May 28 at unchanged pricing ($5 input and $25 output per million tokens), with a cheaper fast mode and dynamic workflows (research preview) that run parallel subagents in Claude Code
• Google I/O on May 19 brings Gemini 3.5 Flash, Antigravity 2.0 as a desktop app, a new Antigravity CLI and Managed Agents in the Gemini API
• Cursor ships Composer 2.5 on May 18, priced at $0.50 input and $2.50 output per million tokens in standard mode, with a faster default tier
• Anthropic adds three Claude Managed Agents features on May 19: dreaming (memory curation across sessions), outcomes (rubric-based grading) and multiagent orchestration

UX/UI

• Figma starts rolling out its design agent in beta on May 20: it edits designs on the canvas from prompts, can use your components and tokens, and does not consume AI credits during the beta
• Claude Code adds agent view (research preview): claude agents lists every session as running, blocked on you or done, on a single screen
• GitHub shows code coverage on pull requests in public preview, fed by a Cobertura report uploaded from CI

Engineering

• Claude Opus 4.8 is generally available in GitHub Copilot from May 28 for Pro+, Business and Enterprise, with a 15x premium request multiplier until usage-based billing starts on June 1
• Claude Code /goal keeps the agent working across turns until a condition you wrote holds, checked after every turn by a separate small fast model
• Simon Willison notes Gemini 3.5 Flash is generally available at $1.50 input and $9 output per million tokens, about three times the price of Gemini 3 Flash Preview
• GitHub lets enterprise owners enable specific Copilot models for selected organizations with targeted model rules (public preview, Business and Enterprise plans)
• Copilot Memory gets a per-repository off switch, clearer scope prompts and a /memory command in the Copilot CLI

DevOps

• npm makes staged publishing generally available (a maintainer approves a version with 2FA before it becomes installable) and adds --allow-file, --allow-remote and --allow-directory flags in npm 11.15.0
• Claude Platform on AWS reaches general availability on May 11 with IAM authentication, consolidated AWS billing and CloudTrail logging in 17 regions
• CodeQL 2.25.5 improves GitHub Actions queries: actions/unpinned-tag now checks composite actions and poisonable_steps finds more sinks
• Docker starts a “Coding Agent Horror Stories” series on May 18 and argues for running agents in microVM sandboxes with scoped mounts and network allowlists
• GitHub Advanced Security gets hard budget limits that block new license assignments once the cap is reached

Infosec

• Anthropic’s first Project Glasswing update (May 22) reports more than 10,000 high or critical vulnerabilities found by partners, and 75 patched of an estimated 530 high or critical open-source bugs disclosed to maintainers
• Mozilla reports that Claude Mythos Preview found 271 bugs fixed in Firefox 150, 180 of them rated sec-high
• Adversa AI’s TrustFall (May 7) shows Claude Code, Cursor CLI, Gemini CLI and Copilot CLI starting project-defined MCP servers after a single folder-trust prompt, and Anthropic declined the report as outside its threat model
• OpenAI releases GPT-5.5-Cyber in limited preview for verified security teams, a more permissive model for red teaming, penetration testing and vulnerability validation, per Help Net Security (May 8)

Tricks & Tips

• Simon Willison says vibe coding and agentic engineering are converging in his work: he no longer reads every line agents write and treats them like another team’s service
• Claude Code 2.1.128 to 2.1.136 add --plugin-url for trying a plugin from a URL and autoMode.hard_deny rules that block actions even when allow rules match
• Simon Willison’s PyCon US lightning talk recaps six months of LLMs: coding agents became reliable, and laptop-sized open-weight models such as Qwen3.6-35B-A3B outperformed his expectations

Reddit & Twitter

• The Hacker News thread on the Claude Opus 4.8 announcement has about 1,800 points and 1,400 comments
• The Hacker News thread on Gemini CLI stopping on June 18, 2026 has about 400 points, with comments on naming, quotas and the closed-source Antigravity CLI
• Simon Willison’s notes on Opus 4.8 call it “a modest but tangible improvement” and compare its effort levels with his pelican test

OSS

• GitHub’s May 21 changelog says Copilot for Eclipse is open source under the MIT license, including completions, Next Edit Suggestions, agent mode and MCP integration
• OpenCode 1.14.51 (May 15) adds experimental background subagents so tasks keep running while you keep working
• Google replaces the Apache 2.0 Gemini CLI with the closed-source Antigravity CLI for subscription users from June 18, while the Antigravity SDK is open source
• Armin Ronacher asks that issue reports on Pi describe what the human actually observed, not AI-reworded text with guessed causes
• Simon Willison releases Datasette Agent on May 21, an extensible assistant for asking questions about Datasette data, with plugins such as chart generation