Claude Haiku 4.5

The fast, cheap tier: the only Haiku in the current lineup.

API model ID	`claude-haiku-4-5-20251001`
Context window	200K tokens
Max output	64K tokens
Input price	$1 per million tokens
Output price	$5 per million tokens
Knowledge cutoff	Feb 2025
Released	Oct 15, 2025
Tokenizer generation	Classic (Sonnet 4.6 and earlier)
Status	Active

From the announcement

Near-Sonnet-4 coding at a third of the cost and more than twice the speed.
Priced at $1 input / $5 output per MTok.

Read Anthropic's announcement

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Other models

Claude Opus 4.8 Claude Fable 5 Claude Sonnet 5 Claude Opus 4.7 Claude Opus 4.6 Claude Sonnet 4.6 Claude Sonnet 4.5 Claude Opus 4.5 Claude Opus 4.1

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