AIToday
Large Language ModelsAI Coding AssistantsZenn AI/MLPublished: Oct 11, 2026, 10:00 JST

Claude Code Projects opens to Pro and Max; Haiku 5.5 ships

Claude Code Projects opens to Pro and Max; Haiku 5.5 ships

Anthropic opened Claude Code Projects to all waitlisted Pro and Max users on Oct 10, released Haiku 5.5 on Oct 7, and shipped fixes for permission-rule and hook gaps in versions 2.1.289〜2.1.296.

Not sure about something? Ask the AI

Questions and answers are published on this page.

Summaries like this, in your inbox every morning.

Context & Analysis

The week's changes cluster around two concerns: who gets access, and what stops a misbehaving rule. Claude Code Projects moved out of waitlist status for Pro and Max on October 10, but Projects is not available to Team and Enterprise, and it cannot be reached from the CLI, VS Code or JetBrains — only claude.ai/code and the desktop and mobile apps. New projects default every thread to Opus at high effort, which consumes plan limits faster.

On the pricing side, Haiku 5.5 landed on October 7 with a 1M-token context and 128k maximum output, priced at one-tenth of Haiku 4.5 for prompts up to 100k tokens. Anthropic continues to recommend Sonnet 5.5 and Opus 5.5 for complex agentic coding, positioning Haiku 5.5 for narrower work such as compaction, summarization and subagents. Sonnet 5.5's cache-read price also fell that same day, from $0.20 to $0.10 per million tokens.

The patch sequence from 2.1.289 to 2.1.296 reads as a sweep of enforcement gaps: environment-variable prefixes and variable assignments bypassing Bash deny/ask rules, symlink and image-path reads slipping past Read deny, and hooks that failed open. In 2.1.292, one entry is explicitly marked "Security" — PreToolUse hook approvals and auto mode bypassing the permission prompt for file reads from network (UNC) paths. The new onFailure option, available from 2.1.295, lets a failing or timing-out hook block the action rather than let it proceed.

Some fixes will produce more prompts: wildcard-expanded arguments in rg and git grep, pyright, some ps forms, and certain commands that assign to BASH_ARGV0. Anthropic's Usage Policy update, announced October 8 and effective November 12, is described as mostly a clarification of existing rules, but adds that users are responsible for the actions of agents they build or deploy.

FAQ
How much cheaper is Haiku 5.5 than Haiku 4.5?
For prompts of 100k tokens or less, Haiku 5.5 input is $0.10 per million tokens and output is $0.50, versus $1.00 and $5.00 for Haiku 4.5 — one-tenth the unit price. Above 100k tokens the rates rise to $0.50 input and $2.50 output.
Can the new monthly API credits from Max and Team be used with Claude Code?
No. The credits work with Claude API, Managed Agents, Agent SDK and Playground, but not with Claude Code, and plan usage limits are unchanged. Max 5x gets $100 per month and Max 20x gets $200.
What does the new onFailure setting for hooks do?
Adding "onFailure": "block" to a command or http hook stops the action when the hook fails or times out, instead of letting it through. It requires Claude Code v2.1.295 or later, and the default is "continue".

AI news that matters for your work, delivered every morning.

Pick your industry and the AI tools you use, and get news related to your work every day.

Free · 30 seconds with Google · unsubscribe anytimeWhat is AIToday? →

Ask AI

Ask AI anything about this article. The AI reads this article, earlier AIToday articles, and Wikipedia, and cites its sources. Q&As are published on this page for other readers too.

Questions and answers are published on this page.

Related Articles

Next articleByte Transformers beat subword models as scale grows