Claude Opus 5.5

Claude Opus 5.5

Anthropic
Claude Tag

Claude Tag

Anthropic
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About

Claude Opus 5.5 is Anthropic’s advanced AI model for agentic coding, complex knowledge work, computer use, research, and long-running professional tasks. It is designed to handle large codebases, multi-step workflows, financial analysis, document creation, software audits, and other demanding workloads with improved efficiency over Claude Opus 5. Anthropic reports that Opus 5.5 uses fewer tokens per task, produces output more than 30% faster, and costs less to run than its predecessor. The model also improves communication quality by putting important information first, reducing unnecessary jargon, and following writing instructions more consistently. Safety enhancements include stronger prompt-injection resistance, action screening, sandboxing support, code review, behavioral alignment testing, and safeguards for high-risk cybersecurity & biology. Claude Opus 5.5 is available through Claude, Claude Code, the Claude Platform API, Amazon Web Services, Google Cloud, and Microsoft Azure.

About

Claude Tag is a team-based AI assistant from Anthropic that lets organizations work with Claude directly inside Slack. Teams can grant Claude access to selected Slack channels, tools, data sources, and codebases, then tag @Claude to delegate tasks in shared conversations. Claude Tag can break requests into stages, work through tasks asynchronously, and respond in Slack threads with completed outputs. The product is designed to act more like a collaborative teammate than a single-user chat, allowing everyone in a channel to see Claude’s work and continue the conversation. Claude can learn relevant context from permitted channels and data sources, take initiative through ambient updates, and schedule work for itself over hours or days. Claude Tag is available in beta for Claude Enterprise and Team customers, with administrative controls for permissions, scoped memories, token spend, logs, and channel-level access.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Software developers, AI engineers, researchers, analysts, legal and financial professionals, enterprises, and other organizations that need a high-capability model for coding, knowledge work, computer use, and long-running agentic workflows

Audience

Claude Tag is best suited for enterprise teams, product teams, engineering teams, support teams, data teams, operations groups, and organizations that use Slack and need a collaborative AI assistant for delegated tasks, shared context, asynchronous work, tool access, and governed team workflows

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$4 per 1M tokens (input)
$4 per million input tokens and $20 per million output tokens.

Cache reads, which account for most costs in agentic and coding workloads, are priced at just $0.20 per million tokens which is 60% cheaper than Opus 5. Opus 5.5 also delivers output over 30% faster than its predecessor.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 4.0 / 5
design 5.0 / 5

Pros & Cons from Real Users

Pros

  • After using it, the biggest thing I notice is how much better it is at sustained work. It stays organized across long coding sessions, multi-file changes, research tasks, and agent workflows without needing nearly as much babysitting. The coding performance is excellent. Anthropic reports 54.6% on FrontierCode 1.1 at default effort, ahead of GPT-6 Astra’s reported 53.3%, and I can see why. It is especially good at understanding a large task, making sensible changes, and avoiding unnecessary edits. I also really like the efficiency. At $4 per million input tokens and $20 per million output tokens, plus much cheaper cache reads, Opus 5.5 is easier to use heavily than Opus 5. Anthropic says typical workloads come out around 40% cheaper overall. Another improvement is the writing. It is noticeably less verbose and easier to follow, which matters a lot during long sessions when I need to quickly understand what the model changed and why.

Cons

  • The main downside is that it is still a premium model, so I would not waste it on every trivial task. And like any coding agent, I still review diffs, run tests, and keep permissions tight.

Pros & Cons from Real Users

Pros

  • Claude Tag feels like having an extra teammate in Slack who’s always available to help. It can keep up with conversations, provide useful insights, and handle tasks without requiring people to constantly switch between different tools. The way it works directly within Slack makes collaboration much smoother and more efficient.

Cons

  • There can be a bit of a learning curve at first, especially when figuring out the best ways to use it within your team's workflow. Some teams may also need time to build trust in letting AI handle more responsibilities.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Anthropic
Founded: 2021
United States
claude.ai

Company Information

Anthropic
Founded: 2021
United States
anthropic.com

Alternatives

Alternatives

Claude Code

Claude Code

Anthropic
Viktor

Viktor

Viktor.com
GPT-5.6 Sol

GPT-5.6 Sol

OpenAI
Hermes Agent

Hermes Agent

Nous Research
Claude Fable 5

Claude Fable 5

Anthropic
Claude Dispatch

Claude Dispatch

Anthropic
Claude Opus 5

Claude Opus 5

Anthropic
Claude Desktop

Claude Desktop

Anthropic

Categories

Categories

Integrations

Claude
BLACKBOX AI
Bolt.new
CLion
Claude Code
Cosmos
Dessix
Devin Desktop
Doraverse
GitAuto
Hermes Agent
Java
MyClaw
OpenCode
PhpStorm
PowerShell
Replit
RustRover
Skymel
Verdent

Integrations

Claude
BLACKBOX AI
Bolt.new
CLion
Claude Code
Cosmos
Dessix
Devin Desktop
Doraverse
GitAuto
Hermes Agent
Java
MyClaw
OpenCode
PhpStorm
PowerShell
Replit
RustRover
Skymel
Verdent
Claim Claude Opus 5.5 and update features and information
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