Anthropic

Anthropic: Claude Haiku 5.5

anthropic/claude-haiku-5.5
Context

1M

Input

text, image

Output

text

Tool calling

Supported

About this model

Claude Haiku 5.5 is Anthropic's fastest, cheapest, and most capable Haiku-class model, designed for high-volume, latency-sensitive, and cost-sensitive workloads. It is optimized for classification, extraction, routing, summarization, database queries, live customer support, browser use, subagent workflows, and lightweight coding tasks. The model supports a 1M-token context window, up to 128K output tokens, adaptive thinking with configurable effort, vision, tool use, computer use, and agentic workflows. Haiku 5.5 is particularly suited to applications requiring high throughput and low latency while retaining strong reasoning, coding, computer-use, and knowledge-work capabilities.

Input modalities

text

Accepted as model input

image

Accepted as model input

Providers

Available routing options for this model through OneInfer.

Available

Input tokens

$0.500 / 1M tokens

Output tokens

$2.500 / 1M tokens

Routing

OneInfer optimized

Pricing

Current OneInfer pricing for this model.

UsagePrice
Input tokens$0.500 / 1M tokens
Output tokens$2.500 / 1M tokens
Cached input tokens$0.050 / 1M tokens

Performance & Benchmarks

Independent evaluations and live cluster operational metrics

We haven’t measured this model yet. Published academic results are under Academic Evaluations.

API Guide

API docs
  1. 1

    Generate your access token

    Use your API key to generate the JWT access token required by the Models API.

  2. 2

    Add the JWT token

    Copy the generated JWT token and replace JWT_TOKEN in the example below.

  3. 3

    Check your credits

    If your balance is too low, before calling the model.

  4. 4

    Run the API example

    Choose your preferred language, copy the example, and send your first model request.

    curl https://api.oneinfer.ai/v1/ula/chat/completions \
      -H "Authorization: Bearer $JWT_TOKEN" \
      -H "Content-Type: application/json" \
      -d '{
        "model": "anthropic/claude-haiku-5.5",
        "messages": [
          { "role": "user", "content": "Hello!" }
        ]
      }'

Community Model Reviews & Ratings

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4.8
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