Claude
Claude is Anthropic’s advanced AI assistant platform, offering agentic capabilities via models like Sonnet 5 and Fable 5. Its structured tiers and research-focused features such as Claude Science make it highly relevant for today’s professionals.
See it in Action
What it does
Claude is a transformer‑based AI assistant developed by Anthropic, designed for safe, reliable, and human‑aligned interactions. It leverages constitutional AI principles to maintain compliance and ethical output.
It powers agentic task execution—planning, tool use, autonomous operation—through models like Sonnet 5, which can browse, code, plan, and act with minimal prompting.
The platform now includes Claude Science, a public beta AI workbench aimed at unifying scientific research workflows—from literature review to data analysis—within controlled infrastructure for auditability and privacy.
Key Features
- Sonnet 5 Agentic Model – Enables autonomous planning, browsing, coding and execution with professional-grade performance and broad availability across tiers.
- Fable 5 Frontier Model – High‑capability version of Mythos 5 with safety filters. Now restored globally for higher‑tier users post export-control lift.
- Claude Science Workbench – Scientific research environment in beta that consolidates tools like Jupyter, PubMed, analysis pipelines into one interface while preserving data locality.
- Multi‑Tier Subscription Structure – Includes Free, Pro, Max (5×/20× usage), Team, and Enterprise plans, calibrated for both individuals and organizations.
- Token‑Based API Access – Developers can access models like Sonnet 5, Opus 4.8, Haiku 4.5 with transparent input/output token pricing and introductory discounts for Sonnet 5.
Who it is for
- Professional Users (e.g., writers, developers, analysts) – Gain from Sonnet 5’s autonomous capabilities and expanded Pro/Max usage for productivity workflows.
- Scientists & Researchers – Claude Science unifies fragmented research environments, preserving audit trail and enabling local infrastructure usage.
- Teams & Enterprise Organizations – Team and Enterprise tiers offer seat-based access, admin controls, SSO/SCIM, audit logs, and compliance features.
- Developers & Product Builders – API and prompt-based tools support granular usage via per-token pricing and prompt caching frameworks.
How it works
1. User signs up at claude.com and selects a plan: Free, Pro, Max (5× or 20×), Team, or Enterprise.
2. Depending on plan, access Claude via web, desktop, mobile, or API.
3. When interacting, Free and Pro users default to Sonnet 5; higher-tier users additionally can use Fable 5 when available.
4. Claude Science (beta) is accessible to Pro, Max, Team, Enterprise users on macOS/Linux, operating on local infrastructure for research tasks.
5. API users choose models (Sonnet 5, Opus 4.8, Haiku 4.5) and pay per input/output token; Sonnet 5 has introductory pricing until August 31, 2026.
6. Enterprise users configure admin tools including SSO, compliance API, audit logs, and data retention.
Pros
- Agentic models (Sonnet 5, Fable 5) reduce manual guidance by automating complex tasks.
- Claude Science workbench integrates research tools while preserving data privacy and auditability.
- Comprehensive tiered pricing supports individuals, teams, and enterprises.
- Transparent API token pricing with short‑term discounts enhances cost predictability.
Cons
- Free tier has strict usage limits suitable only for testing or light use.
- Advanced models like Fable 5 and Claude Science remain limited to paid tiers and may involve risk-based restrictions.
- Post‑beta pricing for Sonnet 5 will rise after August 31, 2026, reducing introductory cost advantage.
Pricing Overview
Claude uses two primary pricing strategies:
- Subscription plans: Free tier, Pro (mid-cost), Max with 5× or 20× usage, Team (seat‑based), and Enterprise (custom, with extra API billing).
- API token pricing: Models like Sonnet 5, Opus 4.8, Haiku 4.5 are priced per million input/output tokens. Sonnet 5 is at an introductory lower rate until August 31, 2026, then increases.
This structure separates human-facing subscription usage from developer charge‑per‑token workloads.
Frequently Asked Questions
What is Sonnet 5 and who gets access?
Sonnet 5 is Claude’s newest agentic model for planning, coding, browsing, and autonomous tasks. It’s now the default for Free and Pro users and also available to Max, Team, and Enterprise subscribers.
What is Claude Science?
Claude Science is an AI workbench in public beta that integrates research tools like Jupyter, literature search, analysis, and visualization into one environment, running on a user’s local infrastructure for privacy and auditability. Available to Pro, Max, Team, and Enterprise users.
How and when will Sonnet 5 pricing change?
Sonnet 5 is available at an introductory token‑price rate until August 31, 2026. After that, standard higher input/output token pricing applies.
What is Fable 5 and who can use it?
Fable 5 is a consumer‑safe version of the Mythos‑class model, with safety filters. It was restored globally after export‑control removal and is accessible to users on Claude.ai across supported tiers.
Which subscription tier is best for teams?
The Team plan uses seat‑based pricing, offering features like Claude Code, Science, collaboration, SSO, admin controls and higher usage. Enterprise adds more governance, audit logs, compliance APIs, and data retention.