Anthropic releases Claude Haiku 5.5 and reduces API pricing

Anthropic PBC released the Claude Haiku 5.5 small model on October 7, 2026. SiliconANGLE reported that the release comes two weeks after Opus 5.5 launched on September 22, making Haiku 5.5 the third model in the company's 5.5 generation. SiliconANGLE also reported that Anthropic is halving the price it charges for cache reads on the Claude Sonnet 5.5 model. [1][3]

Outlets differed on the exact pricing reductions for the new small model. VentureBeat and news.lavx.hu reported that Anthropic cut Haiku 5.5 API prices by 90 percent to match OpenAI's GPT-6 Luna. However, SiliconANGLE reported that the newest small model is priced at roughly a quarter of what Haiku 4.5 costs to run. [1][2][3][5]

The new model is designed for high-volume, cost-sensitive tasks. SiliconANGLE and TradingView both reported that Anthropic is targeting repetitive work such as high-volume summaries, classification, and coding subagents. The model is also available in GitHub Copilot, according to The GitHub Blog. [1][3][4][7]

Claude is a series of large language models developed by Anthropic that originally launched as a chatbot in March 2023. Anthropic trains its models using Constitutional AI, a technique introduced in 2022 that uses artificial intelligence feedback against natural-language principles rather than relying exclusively on human preference data. [8][11]