OpenRouter

OpenRouter: Claude Haiku 4.5 (OR)

stable

Claude Haiku 4.5 (OR) is available through Everstack's OpenAI-compatible gateway with routing, fallback, retries, and observability.

anthropic-claude-haiku-4.5claude-4released Oct 15, 2025
ProviderQuick start
Context
200K
tokens
Max output
64K
tokens
Input
$1.00
per 1M
Output
$5.00
per 1M

Activity

Daily period usage
Aggregated managed Everstack traffic. Buckets below 5 tenants or 100 requests are withheld.

Providers

ProviderContextInput /MOutput /M
OpenRouter
OpenRouter
200K$1.00$5.00

Pricing

ItemPriceUnit
Input$1.00per 1M tokens
Output$5.00per 1M tokens
Cache read$0.10per 1M tokens
Cache write$1.25per 1M tokens

Performance

Reliability

Compare

Compare usage and performance
Place this model beside up to three other catalog models.

Capabilities

Capabilities
Modalities
Input
Output
Details
Model ID
anthropic-claude-haiku-4.5
Family
claude-4
Status
stable
Knowledge
-
Released
Oct 15, 2025
Gateway Config
API
2024-01-01
Auth
OPENROUTER_API_KEY
Discovery
dynamic
Provider type
meta

Quick Start

index.ts
import Everstack from "@everstack/node";const client = new Everstack({  apiKey: process.env.EVERSTACK_API_KEY!,  baseUrl: "https://{instance}.{region}.everstack.ai",});const completion = await client.chat.completions.create({  model: "@openrouter/anthropic-claude-haiku-4.5",  messages: [{ role: "user", content: "Explain vector cache routing." }],});console.log(completion.choices[0]?.message?.content);

Endpoint

Base URL
https://openrouter.ai/api/v1
Chat completions
https://openrouter.ai/api/v1/chat/completions
Model
anthropic-claude-haiku-4.5
Auth env
OPENROUTER_API_KEY

Claude Haiku 4.5 (OR) FAQ

How much does the Claude Haiku 4.5 (OR) API cost?

Through OpenRouter, Claude Haiku 4.5 (OR) costs $1.00 per 1M input tokens and $5.00 per 1M output tokens.

What is the context window of Claude Haiku 4.5 (OR)?

Claude Haiku 4.5 (OR) accepts up to 200K tokens of context and returns up to 64K output tokens on OpenRouter.

What can Claude Haiku 4.5 (OR) do?

Claude Haiku 4.5 (OR) supports chat, function calling, image input and reasoning. It accepts text, image and PDF input.

How do I call Claude Haiku 4.5 (OR) through Everstack?

Point any OpenAI-compatible SDK at your Everstack gateway and set the model to @openrouter/anthropic-claude-haiku-4.5. Everstack adds retries, provider fallback, caching, per-tenant budgets and OpenTelemetry traces for every request.