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Anthropic

Anthropic

Claude Haiku 4.5

Claude Haiku 4.5: The fastest model with near-frontier intelligence

Lifecycle

Active

Release date

Coming soon

Availability

Available in

Availability remains unknown until verified coding-agent sources are connected.

Specifications

Model details

Context window
200,000 tokens
Max output
64,000 tokens
Input types
Image, Text
Output types
Text
Reasoning support
Supported
Vision support
Supported
API availability
Available
Knowledge cutoff
Feb 2025

Changelog

Recent changes

Date pending

Change history coming soon

Release notes and agent availability changes will appear here.

Sources / Verification

Official sources used for this model.

VerificationOfficial source