Model profile
Claude Haiku 4.5
anthropic · released 2025-10-15 · ga · proprietary
textvision fastextended-thinkingsmall-model
votes
Use it
Anthropic Messages API
curl https://api.anthropic.com/v1/messages \
-H "x-api-key: $ANTHROPIC_API_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-haiku-4-5",
"max_tokens": 512,
"messages": [
{ "role": "user", "content": "Summarize the latest product changes in three bullets." }
]
}' Verify the exact model identifier in the provider docs before production use. ai-tracker stores canonical ids and pricing snapshots, not account entitlements.
Availability
Where to check
Timeline
- released
Claude Haiku 4.5 released — fastest model with near-frontier intelligence. source
Used by
- Claude Code · Anthropic · agent-framework
- Claude.ai · Anthropic · chat