---
collection: frontier-ai-labs
collection_name: Frontier AI Labs
digest_count: 9
canonical: https://releases.sh/collections/frontier-ai-labs/digest
---

# Frontier AI Labs weekly digests

- **[Permission hardening and mode control across the agent toolchain](https://releases.sh/collections/frontier-ai-labs/digest/2026-07-13)** — week of 2026-07-13 (27 releases)
  > Anthropic's Claude Code shipped three major security-focused releases this week, closing a permission bypass in PowerShell and fixing worktree isolation for subagents, while OpenAI's ChatGPT desktop app unified its Chat, Work, and Codex modes. The Claude Platform also introduced mid-conversation system messages for three flagship models.
- **[Sonnet 5 and Claude Code reshape the frontier](https://releases.sh/collections/frontier-ai-labs/digest/2026-06-29)** — week of 2026-06-29 (29 releases)
  > Anthropic launched Claude Sonnet 5 with near-Opus performance at a fraction of the cost, while Claude Code — the new autonomous engineering assistant — delivered a landmark government security audit and shipped major stability improvements.
- **[Claude Tag brings collaborative AI agents to Slack as GPT-5.6 previews](https://releases.sh/collections/frontier-ai-labs/digest/2026-06-22)** — week of 2026-06-22 (36 releases)
  > Anthropic launched Claude Tag, a team-oriented AI agent for Slack, while OpenAI began previewing GPT-5.6 Sol and Codex Remote reached general availability across all plans.
- **[Health intelligence, agent safety, and enterprise controls](https://releases.sh/collections/frontier-ai-labs/digest/2026-06-15)** — week of 2026-06-15 (33 releases)
  > GPT-5.5 Instant brought frontier health evaluations to all free ChatGPT users with a 71% reduction in factuality issues, while Claude Code hardened agent safety with destructive command blocking and Anthropic launched enterprise-managed MCP auth. OpenAI also shipped credit usage analytics for Enterprise admins and granular spend controls.
- **[Fable 5 debuts, then vanishes — and tool transparency deepens](https://releases.sh/collections/frontier-ai-labs/digest/2026-06-08)** — week of 2026-06-08 (55 releases)
  > Anthropic launched Claude Fable 5 and Mythos 5 with 1M token context, then had access suspended by a US government export directive by week's end. Across both Anthropic and OpenAI, tooling gained sharper controls: Claude Code sub-agents can now spawn sub-agents, web search tools expose response-inclusion parameters, and ChatGPT added rate-limit reset banking.
- **[Codex expands beyond coding while Claude and OpenAI harden security and cost controls](https://releases.sh/collections/frontier-ai-labs/digest/2026-06-01)** — week of 2026-06-01 (58 releases)
  > OpenAI rolled out role-specific Codex plugins, interactive Sites, and enterprise admin controls for ChatGPT, while Anthropic stopped billing for Claude refusals without output and added a max_tokens parameter to the advisor tool. Both platforms shipped significant security hardening across Claude Code, ChatGPT Lockdown Mode, and the Claude API.
- **[Anthropic launches Opus 4.8 as Claude Code gains dynamic workflows](https://releases.sh/collections/frontier-ai-labs/digest/2026-05-25)** — week of 2026-05-25 (44 releases)
  > Anthropic launched Claude Opus 4.8 with a 1M token context window, while Claude Code introduced dynamic workflows for multi-agent orchestration. OpenAI shipped GPT-5.5 Instant improvements, Codex computer use on Windows, and new ChatGPT app templates for GitHub Enterprise.
- **[Codex ships goal mode, appshots, and remote computer use](https://releases.sh/collections/frontier-ai-labs/digest/2026-05-18)** — week of 2026-05-18 (22 releases)
  > Codex exited goal mode from experimental and launched appshots for macOS, while Claude Code fixed a series of sandbox permission escapes and added a Workflow tool for multi-agent orchestration. Anthropic also opened MCP tunnels as a research preview.
- **[Codex goes mobile as AI coding agents get remote control](https://releases.sh/collections/frontier-ai-labs/digest/2026-05-11)** — week of 2026-05-11 (30 releases)
  > OpenAI brought Codex to the ChatGPT mobile app, letting developers monitor and approve coding tasks from their phone, while Anthropic shipped agent view and goal-completion mode in Claude Code and expanded Opus 4.7 fast mode across the platform.

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