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Checked fact 2422 Sep 2026Models and releases

Claude Opus 5.5 input pricing is $4 per million tokens

Toned down to what the source says

The exact words it rests on

Input pricing: $4 / MTok

What the source said when we opened it, on 22 Sep 2026.

The source

https://platform.claude.com/docs/en/models/opus-5-5/overview

Checked

Checked by the notis newsroom on , against the source above.

In the story

Anthropic released Claude Opus 5.5 with a 1M-token context window 22 Sep 2026

Cite this fact

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