Claude Haiku 4.5 is 3.0× cheaper per million tokens (blended). Claude Sonnet 4.5 has the larger context window (1,000,000 vs 200,000 tokens, 5.0×).

Claude Haiku 4.5 vs Claude Sonnet 4.5

Live catalog fields. Best-in-row is highlighted.

Claude Haiku 4.5

Anthropic · anthropic__claude-haiku-4.5

Claude Sonnet 4.5

Anthropic · anthropic__claude-sonnet-4.5

Identity

Fieldanthropic__claude-haiku-4.5anthropic__claude-sonnet-4.5
ProviderAnthropicAnthropic
Sluganthropic__claude-haiku-4.5anthropic__claude-sonnet-4.5
Statuslivelive
Open weightsNoNo
License
HuggingFace

Quality

Fieldanthropic__claude-haiku-4.5anthropic__claude-sonnet-4.5
Quality index (0–100)

Cost

Fieldanthropic__claude-haiku-4.5anthropic__claude-sonnet-4.5
Input $ / 1M tokens$1.00$3.00
Cached input $ / 1M$0.10$0.30
Output $ / 1M tokens$5.00$15.00

Context

Fieldanthropic__claude-haiku-4.5anthropic__claude-sonnet-4.5
Max context tokens200,0001,000,000
Max output tokens64,00064,000

Modalities

Fieldanthropic__claude-haiku-4.5anthropic__claude-sonnet-4.5
Inputtext, image, filetext, image, file
Outputtexttext