claude-haiku-5-5

Anthropic · Priced per token

Claude-haiku-5-5 is Anthropic's flagship reasoning model released in May 2026. It is built specifically for complex agentic coding, deep logical reasoning, and enterprise-grade knowledge work. The model excels at long-horizon tasks, codebase-scale migrations, and tool use, and supports a context window of up to 1M tokens.

Pricing

Base price

  • Input: $75 per 1M tokens
  • Output: $75 per 1M tokens

List rate at a 1x group multiplier, before any account-specific discount. The effective rate is this figure times the multiplier of the group the account is in.

Pricing by group

GroupMultiplierInputOutput
default1x$75$75

API access

  • anthropic — POST /v1/messages
  • openai — POST /v1/chat/completions

Available to groups: default

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