Anthropic · MultimodalReleased 2025-10-15

claude-haiku-4.5

anthropic/claude-haiku-4.5 id

Claude Haiku 4.5 matches Sonnet 4's performance on coding, computer use, and agent tasks at substantially lower cost and faster speeds. It delivers near-frontier performance and Claude’s unique character at a price point that works for scaled sub-agent deployments, free tier products, and intelligence-sensitive applications with budget constraints.

Tool useReasoningChat
Type
Use claude-haiku-4.5
# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$
$ const { text } = await generateText({
$ model: 'anthropic/claude-haiku-4.5',
$ baseURL: 'https://synapse.garden/api/v1',
$ apiKey: process.env.MG_KEY,
$ prompt: 'Why is the sky blue?',
$ })
200K
CONTEXT WINDOW
64K
MAX OUTPUT
$1.10/M
INPUT · PER M
$5.50/M
OUTPUT · PER M
PRICING

List prices, every modality.

RatePer million tokens · USD
Input$1.10/M
Output$5.50/M
Cache read$0.110/M
Cache write$1.38/M
Honest list pricesHow we calculate prices
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FAQ · CLAUDE-HAIKU-4.5

Frequently asked

01 / 04

How do I call claude-haiku-4.5 from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘anthropic/claude-haiku-4.5 and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does claude-haiku-4.5 cost?

Input: $1.10/M per million tokens. Output: $5.50/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for claude-haiku-4.5?

claude-haiku-4.5 supports a context window of 200K tokens, with a maximum output of 64K tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try claude-haiku-4.5 in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.