Ways to buy 8
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
The lab's own API · cached $0.2 | $2 | $10 | $2 / $10List price | $0.2 | List price |
 AWS BedrockDefault region · cached $0.2 | $2 | $10 | $2 / $10Same as list | $0.2 | Same as list |
global · cached $0.2 | $2 | $10 | $2 / $10Same as list | $0.2 | Same as list |
| Claude Platform on AWS Default region · cached $0.2 | $2 | $10 | $2 / $10Same as list | $0.2 | Same as list |
global · cached $0.2 | $2 | $10 | $2 / $10Same as list | $0.2 | Same as list |
us · cached $0.22 | $2.2 | $11 | $2.2 / $11+10% vs list | $0.22 | +10% vs list |
europe · cached $0.22 | $2.2 | $11 | $2.2 / $11+10% vs list | $0.22 | +10% vs list |
us · cached $0.22 | $2.2 | $11 | $2.2 / $11+10% vs list | $0.22 | +10% vs list |
USD per 1M tokens; batch $1 in, $5 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $400.00 direct.
Kong AI Gateway$400.00+0%
LiteLLM$400.00+0%
Vercel AI Gateway$400.00+0%
Requesty$420.00+5%
Eden AI$422.00+5.5%
OpenRouter$422.00+5.5%
Cloudflare AI GatewayNot offeredNot offered
HeliconeNot offeredNot offered
Neon AI GatewayNot offeredNot offered
A dash: not on that gateway's own model list. No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | ||||||
|---|---|---|---|---|---|---|---|
Anthropic · 1M | $4 | $20 | $4 / $20 | $8 | 1M | Lab list price | · |
Anthropic · 1M | $10 | $50 | $10 / $50 | $20 | 1M | Lab list price | · |
Anthropic · 1M | $5 | $25 | $5 / $25 | $10 | 1M | Lab list price | · |
Anthropic · 1M | $2 | $10 | $2 / $10 | $4 | 1M | Lab list price | · |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · |
Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · |
Google · 1MCheapest: $2.25 on Google Vertex AI (global-flex) | $2 | $12 | $2 / $12 | $4.5 | 1M | $2.25 on Google Vertex AI (global-flex) | · |
About Claude Sonnet 5.5
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade.
Takes text, image, files in and returns text. First listed Oct 2, 2026. Up to 128K output tokens. Blended price $4 per 1M tokens at 3 input to 1 output. Overall score 23 on leadersboard.fru.dev (rank 8). Model id claude-sonnet-5-5.
Price history
List price since Oct 2, 2026, from daily reads of the OpenRouter catalog.
Questions
How much does Claude Sonnet 5.5 cost?
$2 per million input tokens and $10 per million output tokens, with cached input at $0.2, or $1 and $5 through the Batch API.
What is the context window of Claude Sonnet 5.5?
1M tokens, with up to 128K tokens of output.
Where is Claude Sonnet 5.5 cheapest?
Of 8 routes tracked, AWS Bedrock is cheapest at $2 input and $10 output per million tokens.