Claude Haiku 3.5

Retired February 19, 2026

anthropic:claude-haiku-3.5

Added October 22, 2024

Claude Haiku 3.5 was one of Anthropic's cheapest models. It was cheaper and dumber than Haiku 4.5 and more expensive and smarter than Haiku 3.

Blog Post → Simon's Reaction →

Usage

import OpenAI from "openai";

const client = new OpenAI({
    baseURL: "https://api.tributary.cc/openai/v1",
    apiKey: "<TRIBUTARY_API_KEY>",
});

const completion = await client.chat.completions.create({
    model: "anthropic:claude-haiku-3.5",
    messages: [
        { role: "user", content: "Hello!" }
    ],
});

console.log(completion.choices[0].message.content);

const response = await fetch(
    "https://api.tributary.cc/openai/v1/chat/completions",
    {
        method: "POST",
        headers: {
            "Authorization": "Bearer <TRIBUTARY_API_KEY>",
            "Content-Type": "application/json",
        },
        body: JSON.stringify({
            model: "anthropic:claude-haiku-3.5",
            messages: [
                { role: "user", content: "Hello!" }
            ],
        }),
    }
);

const data = await response.json();
console.log(data.choices[0].message.content);

from openai import OpenAI

client = OpenAI(
    base_url="https://api.tributary.cc/openai/v1",
    api_key="<TRIBUTARY_API_KEY>",
)

completion = client.chat.completions.create(
    model="anthropic:claude-haiku-3.5",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)

print(completion.choices[0].message.content)

import requests

response = requests.post(
    "https://api.tributary.cc/openai/v1/chat/completions",
    headers={
        "Authorization": "Bearer <TRIBUTARY_API_KEY>",
        "Content-Type": "application/json",
    },
    json={
        "model": "anthropic:claude-haiku-3.5",
        "messages": [
            {"role": "user", "content": "Hello!"}
        ]
    }
)

print(response.json()["choices"][0]["message"]["content"])

curl https://api.tributary.cc/openai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $TRIBUTARY_API_KEY" \
  -d '{
    "model": "anthropic:claude-haiku-3.5",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

Providers

None