Claude Haiku 4.5
Built by Anthropic, Claude Haiku 4.5 is an image-generation model with a 200K token context window. Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance...
by Anthropic · 200K token context window
Best for
- image generation from text
- creative design and ideation
Ways to use Claude Haiku 4.5 in osFoundry
Connect with your own key (BYOK)
Open the key dialog and paste your Anthropic API key. osFoundry discovers Claude Haiku 4.5 automatically — assign it to a Maestro role (router, direct, orchestrator, or fallback) in the Pipeline tab and it is live in every chat. Your key, your provider account — no token markup.
Use it in a Room App
Room Apps declare AI features in their manifest, then call them with invokeAI:
import { invokeAI } from '@osfoundry/app-sdk'
// 'summarize' is an AI feature declared in your app manifest.
const result = await invokeAI('summarize', userText)
Call it from your own apps
Once a model is wired into your workspace you can host it as an API and reach it from your own services, scripts, or CI — outside osFoundry.
Claude Haiku 4.5 vs similar models
Licence
Hosted — usage subject to provider terms — Hosted-only model — usage governed by the provider's API terms. Bring your own provider key.
No weights distributed; usage subject to provider terms.
Frequently asked about Claude Haiku 4.5
How much does Claude Haiku 4.5 cost?
Claude Haiku 4.5 is metered at $ 1.00 /1M for input, and $ 5.00 /1M for output. Bring your own Anthropic API key — osFoundry passes through provider pricing without markup.
Can I use Claude Haiku 4.5 commercially?
Commercial use is allowed with conditions. Hosted-only model — usage governed by the provider's API terms. Bring your own provider key. No weights distributed; usage subject to provider terms.
What is the context window of Claude Haiku 4.5?
Claude Haiku 4.5 supports a 200K token context window.
Can I run Claude Haiku 4.5 locally?
No — Claude Haiku 4.5 is hosted only and accessed via the Anthropic API.
What is Claude Haiku 4.5 best at?
Claude Haiku 4.5 is well-suited to image generation from text, creative design and ideation.
How do I use Claude Haiku 4.5 in osFoundry?
Paste your Anthropic API key in the key dialog (or deploy the open weights for self-hostable models), assign Claude Haiku 4.5 to a Maestro role in the Pipeline tab, then use it in chat, Room Apps via invokeAI, or your own apps.
Published by Anthropic on October 15, 2025. Source: https://openrouter.ai/anthropic/claude-haiku-4.5