Claude Sonnet 5.5 API pricing & cost

Claude Sonnet 5.5 API pricing, prompt-cache rates, context limits and cost calculators.

Calculate my workload →Official source ↗

Current rates

Pricing snapshot

Static catalog entry updated November 9, 2026; live provider registry data replaces matching rates on load when available.

Input / 1M tokens$2

Output / 1M tokens$10

Cached input / 1M$0.1

Context window1M tokens

Model facts

Pricing rules and quick cost example

What is tracked

Released September 28, 2026.
1M context window and 128K max output.
Cache reads are $0.10/MTok after Anthropic’s October 7 price reduction.
Batch API is 50% off base input and output rates.

2K input + 500 output tokens

At current standard text-token rates, one request is about $0.0090; 1,000 requests ≈ $9.00, before tool fees, regional uplifts or special processing modes.

Use your workload

Turn Claude Sonnet 5.5 pricing into unit economics

Cost per userEstimate AI COGS per active customer →Agent costModel multi-step tasks and retries →Caching savingsModel repeated-context savings →