Anthropic

Claude Opus 5.5

Released 2026-09-22

Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...

You send / 1M

$4.00

tokens in

It replies / 1M

$20.00

tokens out

Memory

1M

tokens it can read at once

Typical request

$0.015

1,000 words in, 400 out

Data privacy

No training or retention: Yes. At least one provider serves it with zero data retention.

ProviderYou send / 1MIt replies / 1MUptimePrivacy policy
Amazon Bedrock$4.00$20.00100%Read
Google$4.00$20.00100%Read
Amazon Bedrock$4.40$22.00100%Read
Amazon Bedrock$4.40$22.00100%Read
Google$4.40$22.00100%Read
Google$4.40$22.00100%Read

Based on OpenRouter and Vercel AI Gateway data. Confirm terms with the provider before sending sensitive data.

What it can do

  • Reads: text, image, file
  • Writes: text
  • Reasoning: Yes
  • Tool calling: Yes
  • Longest reply: 128K tokens
  • Repeated text is billed at $0.200 per 1M (prompt caching)
  • Intelligence score: 57.6 / 100 (Artificial Analysis)

Similar models

Appears in

Estimate your monthly cost with Claude Opus 5.5 →