Claude Haiku 5.5 changelog

Full Claude Platform available on Google Cloud (Anthropic managed)

Claude Models on Google Cloud (Anthropic managed) is generally available with US and Global endpoints. It gives Google Cloud customers the full Claude Platform feature set with Google Cloud IAM, billing and commitment drawdown. Fable 5.1, Opus 5.5, Sonnet 5.5 and Haiku 5.5 are available, and fast mode for Opus 5.5 costs $8 / $40 per million input and output tokens there.

Who is affected:

Teams that buy Claude through Google Cloud and want features that the Google-managed offering lacks.

What to do:

No action needed. Google Cloud customers who need same-day Claude API features can switch to the Anthropic-managed offering.

Claude Haiku 5.5 released at a much lower price than Haiku 4.5

Claude Haiku 5.5 launched with a 1M token context window at $0.10 / $0.50 per million tokens for prompts up to 100,000 tokens and $0.50 / $2.50 above that. Haiku 4.5 costs $1 / $5.

Who is affected:

Apps calling claude-haiku-4-5 for high-volume work.

What to do:

Test claude-haiku-5-5. Remove budget_tokens, sampling parameters and prefill first.

Claude Haiku 5.5 available in GitHub Copilot

Claude Haiku 5.5 is available on Copilot Pro, Pro+, Max, Business and Enterprise at provider list price.