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AI/ML API

Claude 4.5 Haiku API

AI/ML API
About

Build advanced reasoning agents with Claude 4.5 Haiku, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $1.38/1M input and $6.88/1M output tokens, native tool calling support. Access Claude 4.5 Haiku via the AI/ML API API with up to 64K output tokens.

Capabilities

Input Modalities

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Output Modalities

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Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
200K

Tokens

Input Limit
200K

Tokens

Max Output
64K

Tokens

Pricing

Standard (per 1M tokens)

Input
$1.38
Output
$6.88

Caching (per 1M tokens)

Read
$0.14
Frequently Asked Questions

Claude 4.5 Haiku by AI/ML API costs $1.38 per 1M input tokens and $6.88 per 1M output tokens. Cached reads cost $0.14 per 1M tokens.

Model Details
ID
anthropic/claude-haiku-4.5
Provider
AI/ML API
Family
claude-haiku
Release Date
Oct 15, 2025
Knowledge Cutoff
Feb 28, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
AIMLAPI_API_KEY
API Base URL
https://api.aimlapi.com/v1
Documentation