AnthropicSightingClaude Haiku 5.5 (Max, Default Fallback) enters at 43.4 on the Intelligence Index
Confirmed20 evidence links
Anthropic · model family
Claude Haiku models
Claude Haiku has 3 versions on record. The first released was Claude Haiku 3.5 on 4 Nov 2024, the latest Claude Haiku 5.5 on 7 Oct 2026.
Every released version 3
USD / 1M tokens
| Model | Context window | Input USD / 1M tokens | Output USD / 1M tokens | Status |
|---|---|---|---|---|
Claude Haiku 5.5Anthropic | 1M | $0.10–$0.50
| $0.50–$2.50
| Released · |
Claude Haiku 4.5Anthropic | 200K | $1.00 | $5.00 | Released · |
Claude Haiku 3.5Anthropic | — | — | — | API availability · |
Latest signals
AnthropicSighting