Anthropic · Text line

Claude Haiku

2 stages over 12 months, from Claude Haiku 4.5 in Oct 2025 to Claude Haiku 5.5 in Oct 2026.

Evolution chamber01 / 02

Anthropic

Claude Haiku 4.5

CTX200K

62Quality

Reasoning · Vision · Tools

Input$1/M

Output$5/M

Fast Claude model for responsive assistance, classification, and lightweight agents

PaidProprietary677/1044

Ready to evolve

Every generation. A new possibility.

Claude Haiku 4.5 · Oct 2025

2 stages, from Claude Haiku 4.5 (Oct 2025) to Claude Haiku 5.5 (Oct 2026). Press Evolve to watch each step.

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Max output

Output priceper 1M tokens, lower is better

v4.5 Stage 1
Anthropic
Claude Haiku 4.5
CTX200K
62Quality
Reasoning · Vision · Tools
TextImagePDFInput$1/M
TextOutput$5/M
Fast Claude model for responsive assistance, classification, and lightweight agents
PaidProprietary677/1044
v5.5 Stage 2
Anthropic
Claude Haiku 5.5
CTX1M
New
95Quality
Reasoning · Vision · Tools
TextImagePDFInput$0.10/M
TextOutput$0.50/M
Fast Claude model for responsive assistance, classification, and lightweight agents
PaidProprietary1031/1044