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Claude Haiku 4.5 is Anthropic’s fastest and most cost-efficient model, optimized for low-latency and high-volume tasks.

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Model

anthropic/claude-haiku-4-5
ProviderAnthropic
NameClaude Haiku 4.5

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Supported Endpoints

All three API formats are supported:

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Example

curl -X POST https://api.unifically.com/v1/messages \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "anthropic/claude-haiku-4-5",
    "max_tokens": 1024,
    "messages": [
      {"role": "user", "content": "Summarize this paragraph in one sentence."}
    ]
  }'