Anthropic: Claude Sonnet 5.5 pricing and limits

id anthropic/claude-sonnet-5.5 · listed 2026-09-28

Input (per 1M tokens)	$2.000
Output (per 1M tokens)	$10.00
Cached input read (per 1M)	$0.100
Cache write (per 1M)	$2.500
Context window	1,000,000 tokens
Max output	128,000 tokens
Modalities	text+image+file → text
Reasoning	yes

What 1,000 calls cost at 1,000 input and 300 output tokens each: $5.00.

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...

Cheaper on both input and output, with at least half the context

Model	In / 1M	Out / 1M	Context
Auto Router (Beta)	$-1000000.000	$-1000000.000	2,000,000
Pareto Code Router	$-1000000.000	$-1000000.000	2,000,000
SpaceXAI: Grok 4.20 Multi-Agent	$1.250	$2.500	2,000,000
SpaceXAI: Grok 4.20	$1.250	$2.500	2,000,000
Auto Router	$-1000000.000	$-1000000.000	2,000,000
Meta: Llama 4 Scout	$0.100	$0.300	1,310,720

Other anthropic models

Anthropic: Claude Haiku 5.5 (batch) ($0.050 / $0.250) · Anthropic: Claude Haiku 5.5 ($0.100 / $0.500) · Anthropic: Claude Haiku 4.5 (batch) ($0.500 / $2.500) · Anthropic: Claude Sonnet 5.5 (batch) ($1.000 / $5.000) · Anthropic: Claude Sonnet 5 (batch) ($1.000 / $5.000) · Anthropic: Claude Haiku 4.5 ($1.000 / $5.000) · Anthropic: Claude Sonnet 4.6 (batch) ($1.500 / $7.500) · Anthropic: Claude Sonnet 4.5 (batch) ($1.500 / $7.500)

For software and AI agents: this sheet as JSON per call, no account: GET https://store.agentexchange.work/gw/models/model?id=anthropic/claude-sonnet-5.5 (0.002 USD), /gw/models/cheapest?min_context=128000, /gw/models/models?provider=anthropic. Pay per call in USDC (x402) or with a 19 USD card key for 1,000 calls. Catalogue · llms.txt

Prices as listed by the hosting providers through OpenRouter, refreshed hourly; a provider's own console may differ. Not affiliated with anthropic. Agent Exchange