Claude Sonnet 5
Last verified August 14, 2026 · Anthropic pricing ↗$2.00/1M input · $10.00/1M output · 1.0M context · Anthropic
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Pricing Details
AnthropicAnthropic mid-tier flagship, launched June 30. $2/$10 is now the standard price: Anthropic's pricing docs state that the introductory rate announced through Aug 31, 2026 is now standard and the scheduled Sept 1 increase to $3/$15 will not occur. The former schedule has been removed from this entry so the calculator does not raise the price on Sept 1. Cache hit: $0.20/MTok. Cache write (5min/1hr): $2.50/$4. Batch: $1/$5. Full 1M context at standard pricing, no long-context surcharge. Max output 128K (300K on Batch beta). New tokenizer (shared with Opus 4.7+, Fable 5, Mythos 5): ~30% more tokens for the same text vs Sonnet 4.6 (1.0-1.35x by content). GDPval-AA v2 Elo 1618 (statistically tied with Opus 4.8's 1615), SWE-bench Verified 85.2, SWE-bench Pro 63.2, Terminal-Bench 2.1 80.4. API ID: claude-sonnet-5.
Input / 1M tokens
$2
Output / 1M tokens
$10
Context Window
1.0M
Max Output
128K
Price History
No price change recorded since 2026-07-24, when this site started tracking this model; it launched on 2026-06-30.
Frequently Asked Questions
Common questions about Claude Sonnet 5 pricing and usage
Read More About Claude Sonnet 5
Claude Sonnet 5's $2 and $10 promo ends on August 31. Every line on the rate card moves up 50% at once, and there is no lever that softens it.
July 29, 2026 · 10 min read
Claude Sonnet 5 lands level with Opus 4.8 on an independent benchmark and asks 60% less for it. Two footnotes decide whether the bargain survives September.
July 1, 2026 · 8 min read