Anthropic API vs Writer

Claude API uses pay-as-you-go pricing per million tokens (MTok). Haiku 4.5 costs $1 input/$5 output per MTok; Sonnet 5 costs $2 input/$10 output; Opus 5 costs $5 input/$25 output; Fable 5 costs $10 input/$50 output per MTok.

Writer does not publish prices. There are two tiers: Starter, for teams up to five users, with a 14-day free trial and no card required, and Enterprise, which is contact-sales and adds unlimited users and teams.

Batch processing saves 50% on API costs. Prompt caching reduces token costs by up to 90% for cached reads (charged at 80% discount compared to standard rates). Fast Mode for Opus 5 costs 2x standard pricing for up to 2.5x faster response speeds.

Pro is the standard paid seat, with full access to create, customise and automate workflows. Lite seats exist only on Enterprise, letting invited users view and run existing playbooks with limited monthly Agent use before needing a Pro seat.

Self-serve access uses usage-based tiers with automatic rate limit increases as volume grows. Enterprise customers receive custom rate limits, monthly invoice billing, and hands-on support at negotiated pricing.

Writer states a zero data retention approach and says customers retain full ownership of their data. By default it does not train or improve its models on customer data, rather than requiring an opt-out.

US-only inference costs 1.1x pricing for input and output tokens across all model tiers compared to standard multi-region pricing.

Writer says it adheres to GDPR, HIPAA, SOC 2 Type II and PCI. HIPAA and SOC 2 Type II certifications and reports are available on request, and only for Enterprise plans.

Yes. Writer offers 20% off the Starter and Enterprise plans to nonprofits and educational institutions, claimed by emailing from a nonprofit or .edu address.