anthropic/claude-haiku-4-5 API — Pricing & Access

Name: anthropic/claude-haiku-4-5 API
Brand: anthropic
Price: 0.525 USD
Availability: InStock

Pricing

Claude Haiku 4 5 pricing

Billed per token used. Prices sync automatically from wholesale providers.

Direction	Price per 1M tokens
Input	$0.53
Output	$2.63

Availability

Served by 3 providers

Requests route to OpenRouter by default (cheapest). Pin a specific provider with the :provider suffix.

Provider	Upstream model ID
openrouter	`anthropic/claude-haiku-4.5`
openrouter	`anthropic/claude-haiku-4.5:batch`
deepinfra	`anthropic/claude-haiku-4-5`

Quickstart

Call Claude Haiku 4 5 in 30 seconds

Works with any OpenAI SDK — change the base URL and API key only.

Python

from openai import OpenAI

client = OpenAI(api_key="YOUR_API_KEY", base_url="https://api.fastinfra.ai/v1")

response = client.chat.completions.create(
    model="anthropic/claude-haiku-4-5",
    messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)

curl

curl https://api.fastinfra.ai/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-haiku-4-5",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

FAQ

Claude Haiku 4 5 — common questions

How much does the anthropic/claude-haiku-4-5 API cost?

On FastInfra, anthropic/claude-haiku-4-5 costs $0.525/1M input, $2.625/1M output tokens. Billing is per token used, with no subscription.

Is anthropic/claude-haiku-4-5 compatible with the OpenAI SDK?

Yes. FastInfra exposes anthropic/claude-haiku-4-5 through an OpenAI-compatible endpoint at https://api.fastinfra.ai/v1 — point any OpenAI SDK at that base URL with a FastInfra API key and keep your existing code.

Which providers serve anthropic/claude-haiku-4-5?

anthropic/claude-haiku-4-5 is available from 3 provider(s): openrouter, openrouter, deepinfra. Requests route to OpenRouter by default (cheapest); append ":provider" to the model ID to pin one.

Alternatives

Claude 3 Haiku anthropic/claude-3-haiku $0.26 input · $1.31 output / 1M tokens Claude Sonnet 5 anthropic/claude-sonnet-5 $1.05 input · $5.25 output / 1M tokens Claude Haiku Latest ~anthropic/claude-haiku-latest $1.05 input · $5.25 output / 1M tokens Claude Sonnet 4 6 anthropic/claude-sonnet-4-6 $1.58 input · $7.88 output / 1M tokens Claude Sonnet 4.5 anthropic/claude-sonnet-4.5 $1.58 input · $7.88 output / 1M tokens Claude Sonnet Latest ~anthropic/claude-sonnet-latest $2.10 input · $10.50 output / 1M tokens

Claude Haiku 4 5 API