Home / All model prices / Anthropic / claude-sonnet-4 A Anthropic
claude-sonnet-4 OpenRouter price Model overview Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...
Context window 1,000,000 tokens
Knowledge cutoff —
Price last verified 2026-09-06
First observed 2026-08-11 Descriptions, capabilities, and tariffs come from the linked source. First-party prices take priority; OpenRouter fallbacks are labelled.
Current price Estimated API value in USD per million tokens, backed by OpenRouter's public Models API.
Input $3
Cached input $0.3
Cache write 5m $3.75
Cache write 1h —
Output $15 Capabilities and formats image text file include reasoning max tokens reasoning stop temperature tool choice tools top k top p Performance references No comparable benchmark data is currently available.
PRICE EVOLUTION Price history Original observation and every later change, including any change of price source.
Original observed price Official price 2026-08-11
Input: $3 Cached input: $0.3 Cache write 5m: $3.75 Cache write 1h: $6 Output: $15
Price change Official price unavailable 2026-08-11
Input: — Cached input: — Cache write 5m: — Cache write 1h: — Output: —
Price change OpenRouter price 2026-08-20
Input: $3 Cached input: $0.3 Cache write 5m: $3.75 Cache write 1h: — Output: $15
