Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic's fastest model, designed for applications where response time and cost efficiency are paramount. Despite its compact size, Haiku 4.5 delivers surprisingly strong performance on straightforward tasks — classification, extraction, summarization, and simple Q&A — making it ideal for high-throughput production pipelines.
Haiku 4.5 is the recommended choice for latency-sensitive applications like real-time chat, autocomplete, and interactive search, where sub-second response times are critical to user experience.
Key Features
Ultra-fast inference with sub-200ms response times
Lowest cost per token in Anthropic's lineup
Strong at classification, extraction, and summarization
200K token context window
Reliable structured output and tool use
Ideal for high-volume production pipelines
Ideal Use Cases
Real-time chat and autocomplete applications
Content moderation and classification at scale
Data extraction from structured and semi-structured documents
High-throughput summarization pipelines
Technical Specifications
| Context Window | 200K tokens |
| Modality | Text, Image → Text |
| Provider | Anthropic |
| Category | Text Generation |
| Max Output | 8K tokens |
| Latency | Sub-200ms |
API Usage
1 curl -X POST https://api.vincony.com/v1/chat/completions \ 2 -H "Authorization: Bearer YOUR_API_KEY" \ 3 -H "Content-Type: application/json" \ 4 -d '{ 5 "model": "anthropic/claude-haiku-4.5", 6 "messages": [ 7 { "role": "user", "content": "Hello, Claude Haiku 4.5!" } 8 ] 9 }'
Replace YOUR_API_KEY with your Vincony API key. OpenAI-compatible endpoint — works with any OpenAI SDK.
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Frequently Asked Questions
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