Claude Haiku 4.5 API pricing

Call claude-haiku-4-5 through RouterPlex's OpenAI-compatible API — vendor list price, 0% markup, billed per token from a prepaid balance. No subscription required.

Input / 1M tokens
$1.00
Output / 1M tokens
$5.00
Context window
256K
Provider
Anthropic

Use it in one request.

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

Works with any OpenAI SDK or tool — just change the base URL. See the quickstart.

Common questions.

How much does the Claude Haiku 4.5 API cost?

Through RouterPlex, Claude Haiku 4.5 costs $1.00 per 1M input tokens and $5.00 per 1M output tokens — the vendor list price with 0% markup, billed per token from a prepaid balance you top up from $5.

What is the context window of Claude Haiku 4.5?

Claude Haiku 4.5 supports a 256K token context window on RouterPlex.

Can I use Claude Haiku 4.5 with the OpenAI SDK?

Yes. RouterPlex serves Claude Haiku 4.5 through an OpenAI-compatible endpoint at https://api.routerplex.com/v1 — point any OpenAI SDK or tool at that base URL with your RouterPlex key and set model to "claude-haiku-4-5".

Try Claude Haiku 4.5 in minutes.

Top up from $5, or see all model pricing and plans.

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Claude Haiku 4.5 API Pricing · RouterPlex