Cyber AI Digest
  1. Claude Blog Oct 7, 2026
    Synapse Halo mascot - Release

    Release

    Anthropic launches Claude Haiku 5.5, presented as its small model, the cheapest, the fastest and the most capable.

    • These cyber guardrails are more restrictive than those of Haiku 4.5, but a little less than those of other recent models.

    • According to Anthropic, misaligned behaviors are far less frequent than with Haiku 4.5.

    • The cost of running it is on average about 75% lower than that of Haiku 4.5.

    Read the original article Claude Haiku 5.5 anthropic.com