Claude 4.5 Haiku

Approved Data Classifications

Description

Claude Haiku 4.5 is Anthropic’s fastest model, offering near-frontier intelligence for low-latency and cost-efficient work. It matches Sonnet 4’s performance on coding, computer use, and agent tasks, and scores 73.3% on SWE-bench Verified, making it one of the world's best coding models. Haiku 4.5 is available via the Claude API, Amazon Bedrock, and Google Cloud Vertex AI, priced at $1 per million input tokens and $5 per million output tokens.

Capabilities

Model	Training Data	Input	Output	Context Length	Cost (per 1 million tokens)
claude-4.5-haiku	July 2025	Image, Text	Text	200,000	$1.00/1M input $5.00/1M output

info

• 1M represents 1 Million Tokens
• All prices listed are based on 1 Million Tokens

Availability

Cloud Provider

Usage

curl

curl -X POST https://api.ai.it.ufl.edu/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer <API_TOKEN>" \
-d '{
    "model": "claude-4.5-haiku",
    "messages": [
        {
            "role": "system",
            "content": "You are a helpful assistant."
        },
        {
            "role": "user",
            "content": "Write a haiku about an Alligator."
        }
    ]
}'

python

from openai import OpenAI
  client = OpenAI(
      api_key="your_api_key",
      base_url="https://api.ai.it.ufl.edu/v1"
  )

  response = client.chat.completions.create(
      model="claude-4.5-haiku", # model to send to the proxy
      messages = [
          { role: "system", content: "You are a helpful assistant." },
          {
              "role": "user",
              "content": "Write a haiku about an Alligator."
          }
      ]
  )

  print(response.choices[0].message)

javascript

import OpenAI from 'openai';

const openai = new OpenAI({
  apiKey: 'your_api_key',
  baseURL: 'https://api.ai.it.ufl.edu/v1'
});

const completion = await openai.chat.completions.create({
    model: "claude-4.5-haiku",
    messages: [
        { role: "system", content: "You are a helpful assistant." },
        {
            role: "user",
            content: "Write a haiku about an Alligator.",
        },
    ],
});

print(completion.choices[0].message)

When to use

• Low-latency chat and customer support
• High-throughput agentic sub-tasks
• Cost-efficient coding assistance
• Real-time computer-use or workflow automation
• Large-scale summarization and extraction
• General-purpose assistants where speed matters

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References

1. Anthropic
   https://www.anthropic.com
2. LLM Stats
   https://llm-stats.com
3. Artificial Analysis
   https://artificialanalysis.ai