Claude Haiku 4.5
$1/Mtok inFast, cheap frontier-family model for high-volume tasks.
Playground
Try it in the browser
Facts
At a glance
Availability
Live
Pricing
$1 / M input · $5 / M output
Endpoint
Chat Completions
/v1/chat/completions
Context window
200k tokens
API
Call it from code
import OpenAI from "openai"
const client = new OpenAI({
baseURL: "https://api.companyfabric.com/v1",
apiKey: process.env.COMPANYFABRIC_API_KEY,
})
const res = await client.chat.completions.create({
model: "anthropic/claude-haiku-4-5",
max_tokens: 1024,
temperature: 0.7,
messages: [{ role: "user", content: "Say hello from the fabric." }],
})
console.log(res.choices[0].message.content)Prompt library
Example runs
Extract every date, amount and counterparty from this contract as JSON.
This exact run cost $0.004
FAQ
Frequently asked questions
How much does Claude Haiku 4.5 cost?
$1 / M input · $5 / M output. The exact cost of each call is shown before you run it and metered to your prepaid balance — no subscription required.
Why use Claude Haiku 4.5 on CompanyFabric instead of going direct?
One key and one balance across every model in the library, at pricing at parity with or below the direct API. Switching models is a one-line change.
Is Claude Haiku 4.5 available through the OpenAI SDK?
Yes — point any OpenAI SDK at api.companyfabric.com/v1 and set model to "anthropic/claude-haiku-4-5".
Variants
Same family
Explore
Related model APIs
One key. Every model. Exact prices.
Run Claude Haiku 4.5 with free starter credits. Free starter credits included — no subscription required.