CapabilityWire
// event · model

Anthropic releases Claude Haiku 5.5

model
vendor: Anthropicpublished: 6d agoconfidence: 0.90id: 2368d4e1-a2d8-4e23-a5df-e636cd9fe26f

Anthropic announced Claude Haiku 5.5, positioned as its fastest, cheapest, and most capable small model to date. The model targets high-volume, latency- and cost-sensitive agent workloads such as classification, routing, extraction, and tool-use loops where price-per-token and throughput dominate the decision to deploy.

capability delta

An agent can now call Claude Haiku 5.5, Anthropic's fastest and cheapest small model, for high-volume cost-sensitive tasks via the Anthropic API.

curator note

Model announcement from Anthropic blog; API model ID assumed to be claude-haiku-5-5 pending confirmation.

// example
python
from anthropic import Anthropic

client = Anthropic()

msg = client.messages.create(
    model="claude-haiku-5-5",
    max_tokens=512,
    messages=[{"role": "user", "content": "Summarize this ticket in one sentence."}],
)
print(msg.content[0].text)
// links
anthropicclaudehaikusmall-modellow-latency
source: blog · https://www.anthropic.com/claude-haiku-5-5