Claude Haiku 5.5

Name: Claude Haiku 5.5
Price: 0.1 USD
Author: Anthropic

Anthropic🇺🇸 United States

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Context window1000K tokens

Input / 1M tokens$0.1

Output / 1M tokens$0.5

Version History

5.5majorOctober 7, 2026

Claude Haiku 5.5 replaces Haiku 4.5 as Anthropic's smallest model. Anthropic claims it costs around 75% less to run and is its fastest model to date.

Coverage

model releaseAnthropic

Anthropic releases Claude Haiku 5.5, claims ~75% lower running cost than Haiku 4.5

Anthropic released Claude Haiku 5.5 on October 7, 2026. The company claims it costs around 75% less to run than Haiku 4.5 and is its fastest model to date. Anthropic also halved Claude Sonnet 5.5's cache read pricing and added a monthly API credit for Max and Team subscribers.

October 7, 2026 · 6:21 PM2 min read

Anthropic Claude Claude Haiku 5.5