← All models
Anthropic
Claude Haiku 4.5
Fast and cheap from Anthropic.
chatcheapfast
Input price
$0.96
per 1M tokens (with markup)
Output price
$4.80
per 1M tokens (with markup)
Context window
200,000
tokens max input
About Claude Haiku 4.5
Haiku is Anthropic's small model — optimized for throughput and cost.
Capabilities
✓Streaming
✓Tool calling / function calls
—Vision input
—JSON mode
Use it through OneAPIKey
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.ONEAPIKEY_API_KEY,
baseURL: "https://oneapikey.app/v1",
});
const res = await client.chat.completions.create({
model: "claude-haiku-4-5",
messages: [{ role: "user", content: "Hello!" }],
});