Anthropic: Claude Opus 5.5

Anthropic: Claude Opus 5.5 is a text model from Anthropic, with a 1M-token context window, priced at $4.00 in · $20.00 out / 1M. On Fully Informed you can add Anthropic: Claude Opus 5.5 to a multi-model panel, where it answers independently, debates the other models and gets cross-checked for blind spots.

Anthropic: Claude 3 Haiku$0.25 in · $1.25 out / 1MAnthropic: Claude Fable 5$10.00 in · $50.00 out / 1MAnthropic: Claude Fable Latest$10.00 in · $50.00 out / 1MAnthropic: Claude Haiku Latest$1.00 in · $5.00 out / 1MAnthropic: Claude Opus Latest$4.00 in · $20.00 out / 1MAnthropic: Claude Sonnet Latest$2.00 in · $10.00 out / 1M

What is Anthropic: 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. It is particularly strong at multi-step changes in large codebases, code...

What is the context window of Anthropic: Claude Opus 5.5?

Anthropic: Claude Opus 5.5 supports a 1M-token context window.

How much does Anthropic: Claude Opus 5.5 cost?

Anthropic: Claude Opus 5.5 is priced at $4.00 in · $20.00 out / 1M via OpenRouter.

What are alternatives to Anthropic: Claude Opus 5.5?

Comparable text models include Anthropic: Claude 3 Haiku, Anthropic: Claude Fable 5, Anthropic: Claude Fable Latest, Anthropic: Claude Haiku Latest.