Claude Haiku 4.5

proprietary

The fastest model with near-frontier intelligence

Intelligence
Reasoning
Speed
Context
200K
Max output
64K
Input price
$1/1M tokens
Output price
$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
Provider OpenCode Zen
Creator Anthropic
Familyclaude-haiku
Licenseproprietary
Statusactive
Typechat
Input modalitiestext
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window200K tokens
Max input—
Max output64K tokens
Reasoning tokens—
Knowledge cutoff
Training data cutoff
Release date
Sourceofficial

Pricing

Input
$1
Output
$5
Cache write
$1.25
Cache read
$0.1
Batch in
—
Batch out
—

Family Comparison: claude-haiku

ModelContextMax outPricing
Claude Haiku 5.51M128K$0.1$0.5
Claude Haiku 3.5——$0.8$4
Claude Haiku 4.5200K64K$1$5

API

GET/v1/models/opencode/claude-haiku-4-5