AnthropicLanguage models

Claude Haiku 4.5

Fast and cheap from Anthropic.

About this API

Haiku is Anthropic's small model — optimized for throughput and cost.

Sample request

curl https://oneapikey.app/v1/v1/messages \
  -H "Authorization: Bearer $ONEAPIKEY_API_KEY" \
  -H "X-APIMarket-Product: claude-haiku-4-5" \
  -H "Content-Type: application/json" \
  --data '{"model":"anthropic/claude-haiku-4-5","messages":[{"role":"user","content":"hi"}]}'