Claude Haiku 5.5 by Anthropic

Text+image->text

Claude Haiku 5.5 is Anthropic's smallest, fastest, and most cost-efficient model in the Claude 5.5 family, designed for high-volume, cost-sensitive tasks. It excels at quick and repetitive workloads such as summarization, classification, database queries, and extraction, and is well-suited for speed-sensitive applications like live customer support, voice agents, and browser use. It also works effectively as a subagent alongside larger Claude models on coding tasks. Haiku 5.5 costs approximately 75% less than its predecessor, Haiku 4.5, and includes built-in cybersecurity safeguards.

Free credits included. No credit card required.

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Evaluations

across 1 benchmark

Latency

4.1s

Context length

tokens

Cost

$0.10 · $0.50

input · output per 1M tokens

Key takeaways

Claude Haiku 5.5 is designed for high-volume, cost-sensitive, and speed-sensitive tasks like summarization, classification, database queries, extraction, live customer support, and voice agents.
It is the smallest, fastest, and most cost-efficient model in the Claude 5.5 family.
The model is based on a Transformer architecture and works as a subagent for coding tasks alongside larger Claude models.
Notable capabilities include high efficiency and significantly reduced cost (75% less than Haiku 4.5), with built-in cybersecurity safeguards.
It supports a large context length of 1,000,000 and a max output of 100,000 tokens, indicating strong performance for extensive text processing.

Technical specifications

Context length: 1M tokens
Max output: —
Architecture: Transformer
Modalities: text+image->text
Parameters: —
Open weights: No
Licence: Proprietary
Regions: USA
Vendor: Anthropic
Provider model key: anthropic/claude-haiku-5-5