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Claude Opus 5.5

Anthropic · Reasoning · 1M context · released Sep 22, 2026 · checked 6h ago

Ways to buy 13

Way to buyIn / out per 1M
Anthropic API
The lab's own API · cached $0.2
$4 / $20List price
AWS Bedrock
Default region · cached $0.2
$4 / $20Same as list
Azure AI Foundry
global · cached $0.2
$4 / $20Same as list
Claude Platform on AWS
Default region · cached $0.2
$4 / $20Same as list
Databricks Mosaic AI Gateway + Foundation Model APIs
From the platform pricing page
$4 / $20Same as list
Google Vertex AI
global · cached $0.2
$4 / $20Same as list
AWS Bedrock
eu-west-1 · cached $0.22
$4.4 / $22+10% vs list
AWS Bedrock
us-east-1 · cached $0.22
$4.4 / $22+10% vs list
Azure AI Foundry
us · cached $0.22
$4.4 / $22+10% vs list
Google Vertex AI
europe · cached $0.22
$4.4 / $22+10% vs list
Google Vertex AI
us · cached $0.22
$4.4 / $22+10% vs list
Snowflake Cortex AI (AI_COMPLETE)
From the platform pricing page
$4.8 / $24+20% vs list
Anthropic
fast · cached $0.4
$8 / $40+100% vs list

USD per 1M tokens; batch $2 in, $10 out on the lab's API. Regions are separate routes.

Through a gateway

Your own numbers

100M input and 20M output tokens a month: $800.00 direct.

No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.

Related models

In / out per 1M
Claude Fable 5.1
Anthropic · 1M
$10 / $50
Claude Opus 5
Anthropic · 1M
$5 / $25
Claude Sonnet 5
Anthropic · 1M
$2 / $10
Claude Fable 5
Anthropic · 1M
$10 / $50
GPT-5.6 Sol
OpenAI · 1.05MCheapest: $2 on OpenAI (flex)
$2 / $10
GPT-5.5
OpenAI · 1.05MCheapest: $5.63 on OpenAI (flex)
$5 / $30
Gemini 3.1 Pro Preview
Google · 1MCheapest: $2.25 on Google Vertex AI (global-flex)
$2 / $12
GPT-6 Sol
OpenAI · 1.05MCheapest: $2 on OpenAI (flex)
$2 / $10

About Claude Opus 5.5

Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5.

Takes text, image, files in and returns text. First listed Sep 23, 2026. Up to 128K output tokens. Blended price $8 per 1M tokens at 3 input to 1 output. Overall score 25 on leadersboard.fru.dev (rank 5). Model id claude-opus-5-5.

Price history

$3$10Sep 23, 2026Output $20Input $4

List price since Sep 23, 2026, from daily reads of the OpenRouter catalog.

Questions

How much does Claude Opus 5.5 cost?

$4 per million input tokens and $20 per million output tokens, with cached input at $0.2, or $2 and $10 through the Batch API.

What is the context window of Claude Opus 5.5?

1M tokens, with up to 128K tokens of output.

Where is Claude Opus 5.5 cheapest?

Of 13 routes tracked, AWS Bedrock is cheapest at $4 input and $20 output per million tokens.

Sources: OpenRouter's public model catalog and each provider's own pricing page, read every morning at 05:00 UTC; gateway fees re-read every Monday. List prices: your contract may differ. Logos via logo.dev; trademarks belong to their owners.

Price changes by email

Thursdays, only in weeks when an LLM API list price changed.

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