What is Anthropic
Anthropic develops Claude for chat, coding, research and agentic work, and supplies the Claude API for developers and enterprises.
Claude plans
As of September 13, 2026, Free costs US$0. Pro costs US$20 monthly or US$200 paid annually. Max starts at US$100 per person monthly and offers either five or twenty times Pro usage. Team costs US$25 per member per month with annual billing or US$30 monthly, with a five-member minimum; it adds central billing, administration and collaboration. Enterprise is contact-sales priced and adds enhanced context, SSO, domain capture, fine-grained roles, SCIM, audit logs and Google Docs cataloguing.
Current Claude API pricing
Anthropic's current flagship line is Claude Fable 5.1 at US$10 input and US$50 output per million tokens, Claude Opus 5 at US$5 input and US$25 output, Claude Sonnet 5 at US$2 input and US$10 output, and Claude Haiku 4.5 at US$1 input and US$5 output. Anthropic made Sonnet 5's US$2/US$10 introductory rate permanent rather than raising it on September 1.
All four current flagship models accept text and image input and produce text. Fable 5.1, Opus 5 and Sonnet 5 have one-million-token context windows and 128,000-token maximum output; Haiku 4.5 has a 200,000-token context window and 64,000-token maximum output. Earlier non-retired Fable, Opus and Sonnet versions remain listed on the official API price table, while retired models are excluded from this site's API Cost page.
API billing options
Prompt caching, batch processing and US-only inference have separate rates. Batch processing discounts input and output by 50%. US-only inference costs 1.1 times standard token rates for Claude 4.6 and later. Web search is US$10 per 1,000 searches, and code execution includes 50 free container hours daily per organisation before US$0.05 per container hour.
Official sources: Anthropic plans, Claude plan guide, current Claude models, Claude API pricing, and model status.