Claude

Claude is Anthropic's family of frontier large language models and the products built on them: chat, Claude Code, Claude Cowork and an enterprise API platform. It is aimed at engineering, research and knowledge-work teams that need long-context reasoning, agentic coding and tool use under enterprise security and admin controls.

Claude is Anthropic's family of large language models, first released as a chatbot in March 2023 and now spanning four current models: Claude Fable 5.1 and Claude Opus 5 for demanding reasoning and long-horizon agentic work, Claude Sonnet 5 for the best combination of speed and intelligence, and Claude Haiku 4.5 for latency-sensitive workloads. Fable 5.1, Opus 5 and Sonnet 5 each carry a 1M-token context window with 128K max output; Haiku 4.5 offers 200K context and 64K output. All current models accept text and image input, support vision, multilingual work and tool use, and use adaptive thinking steered by an effort parameter rather than a manual token budget. API pricing is published per million tokens - $10/$50 for Fable 5.1, $5/$25 for Opus 5, $2/$10 for Sonnet 5 and $1/$5 for Haiku 4.5 - with Batch API requests at 50% off and prompt-cache reads at 10% of the base input price. Around the models Anthropic ships Claude Chat, Claude Code (IDEs, terminal, Slack and web), Claude Cowork, Claude Security and connectors for Gmail, Google Drive, Slack, Microsoft 365 and Chrome. Enterprises buy either Claude Enterprise for secure workforce access or Claude Platform for API access, with SSO/SAML, SCIM provisioning, RBAC, audit logs, spend controls, OpenTelemetry monitoring, data-retention controls, SOC 2, ISO 27001, GDPR and CCPA compliance and a HIPAA-ready offering. The same model IDs are resold through Amazon Bedrock, Google Cloud Vertex AI and Microsoft Foundry, each with its own regional endpoints and lifecycle dates. Anthropic raised a $30 billion Series G in February 2026 at a $380 billion post-money valuation, led by GIC and Coatue.

Category

AI Models & APIs

Pricing

Freemium, Subscription, Usage-based, Contact for pricing

Target Market

CIOs, CTOs, Enterprise Developers, Data Scientists

Deployment

Cloud-only, API-based, Multi-cloud

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  1M-token context window

  Fable 5.1, Opus 5 and Sonnet 5 each accept one million tokens, roughly 555k words, in a single request.

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  Adaptive thinking with an effort parameter

  The model decides how much to reason, steered by a high or low effort setting instead of a manual token budget.

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  Claude Code across IDE, terminal, Slack and web

  An agentic coding surface that runs in the terminal, IDEs, Slack and the browser against the same account.

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  Enterprise admin and identity controls

  SSO/SAML, SCIM provisioning, role-based access control, audit logs, spend limits and OpenTelemetry monitoring for centrally managed deployments.

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  Multi-cloud model availability

  The same models are served on Amazon Bedrock, Google Cloud Vertex AI and Microsoft Foundry with their own regional endpoints.

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  Batch and prompt-caching discounts

  Batch API requests cost 50% less and prompt-cache reads cost 10% of base input price, cutting repeat-context spend.

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  Published model retirement commitments

  Every model carries a stated earliest-retirement date, so platform teams can plan migrations rather than react to deprecations.

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  Large-scale codebase work

  Engineering teams point Claude Code at a repository and let it plan, edit and run tests across many files.

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  Contract and filing review

  Legal and finance teams load hundreds of pages into a single 1M-token request instead of building a chunked RAG pipeline.

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  Customer support automation

  Product teams build support agents on the API with tool use; Anthropic cites an 87% customer support time reduction among customers.

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  Security triage and patching

  Claude Security detects vulnerabilities and generates candidate patches, giving AppSec teams a first pass before human review.

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  Governed workforce rollout

  Enterprises deploy Claude Chat and Cowork behind SSO, SCIM and retention controls with an audit trail per user.

List pricing is published for Free, Pro ($17/mo annual or $20 monthly), Max (from $100/mo) and Team ($20 standard or $100 premium per seat per month annual). Enterprise is seat price plus usage at API rates and is a sales conversation, not a published table. API access is metered per million tokens, from $1/$5 on Haiku 4.5 to $10/$50 on Fable 5.1, with Batch API requests 50% off and prompt-cache reads at 10% of base input price. The recurring buyer complaint is not the sticker price but the session caps applied to flat-rate plans.

This page was written from 6 sources, 4 on domains other than claude.com.

1. 1.claude.com — pricingvendor
2. 2.claude.com — enterprisevendor
3. 3.platform.claude.com — overview
4. 4.anthropic.com — anthropic raises 30 billion series g funding 380 billion pos
5. 5.en.wikipedia.org — Claude (language model)
6. 6.macrumors.com — claude code users rapid rate limit drain bug