Claude Haiku 4.5

Haiku 4.5 — 最快最便宜的新一代

Model ID: claude-haiku-4-5-20251001 · Type: chat · Provider: Anthropic

Endpoints: /v1/messages · /v1/chat/completions

Pricing

Capabilities

• vision
• function_calling
• cache

from openai import OpenAI

client = OpenAI(api_key="sk-...", base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
    model="claude-haiku-4-5-20251001",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

FAQ

How much does Claude Haiku 4.5 cost on 370.AI?

Claude Haiku 4.5 (`claude-haiku-4-5-20251001`) is billed per usage at $0.9/1M in · $4.5/1M out, in USD. Current pricing is always listed at https://www.370.ai/models/claude-haiku-4-5-20251001.

How do I call Claude Haiku 4.5 through 370.AI?

Send a request to https://api.router.ai/v1/v1/messages with the header `Authorization: Bearer <your API key>` and `"model": "claude-haiku-4-5-20251001"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.

Which endpoints does Claude Haiku 4.5 support?

Claude Haiku 4.5 can be called on: /v1/messages; /v1/chat/completions.

What is Claude Haiku 4.5's context window?

Claude Haiku 4.5 accepts up to 200,000 input tokens and can return up to 64,000 output tokens. Requests exceeding the input limit are rejected before reaching the model.

What can Claude Haiku 4.5 do?

Claude Haiku 4.5 supports: vision, function_calling, prompt_caching, cache.

Who makes Claude Haiku 4.5?

Claude Haiku 4.5 is a chat model from Anthropic, available through the 370.AI gateway with the same API key as every other model.

Call it through the 370.AI OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can discover and call every model on this gateway through MCP (https://mcp.router.ai/mcp) with no manual integration.

API reference · All models