Claude Haiku 4.5

proprietary

The fastest model with near-frontier intelligence

Intelligence
Reasoning
Speed
Context
200K
Max output
64K
Input price
$1.1/1M tokens
Output price
$5.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDclaude-haiku-4-5@vertex
Provider Google Vertex AI
Creator Anthropic
Familyclaude-haiku
Licenseproprietary
Statusactive
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window200K tokens
Max input—
Max output64K tokens
Reasoning tokens—
Knowledge cutoff
Training data cutoff
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Text tokensPer 1M tokens
InputCached inputOutput
Standard$1.1$0.11$5.5
Batch$0.55—$2.75

API

GET/v1/models/vertex/claude-haiku-4-5@vertex

Claude Haiku 4.5

claude-haiku-4-5@vertex

The fastest model with near-frontier intelligence

Changes · 3 entries
claude-haiku-4-5@vertexupdate2b100acMar 23, 2026, 05:30 AM
tools["function_calling"]
claude-haiku-4-5@vertexupdate7a4f1f6Mar 22, 2026, 05:43 AM
pricinginput$1.1output$5.5cached input$0.11batch input$0.55batch output$2.75tiers[{"label":"Text tokens","unit":"Per 1M tokens","columns":...
model_typechat
claude-haiku-4-5@vertexcreate7f5c66fMar 21, 2026, 05:16 AM