How do I call claude-opus-4 from my code?
Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘anthropic/claude-opus-4’ and supply your Synapse Garden API key. No code changes beyond the base URL.
Anthropic · MultimodalReleased 2025-05-22
claude-opus-4
anthropic/claude-opus-4 idClaude Opus 4 is Anthropic's most powerful model yet and the state-of-the-art coding model. It delivers sustained performance on long-running tasks that require focused effort and thousands of steps, significantly expanding what AI agents can solve. Claude Opus 4 is ideal for powering frontier agent products and features.
Tool useReasoningChat
Type
Use claude-opus-4
# Drop-in OpenAI-compatible client$ import { generateText } from 'ai'$$ const { text } = await generateText({$ model: 'anthropic/claude-opus-4',$ baseURL: 'https://synapse.garden/api/v1',$ apiKey: process.env.MG_KEY,$ prompt: 'Why is the sky blue?',$ })
200K
CONTEXT WINDOW8.2K
MAX OUTPUT$16.50/M
INPUT · PER M$82.50/M
OUTPUT · PER MPRICING
List prices, every modality.
| Rate | Per million tokens · USD |
|---|---|
| Input | $16.50/M |
| Output | $82.50/M |
| Cache read | $1.65/M |
| Cache write | $20.63/M |
Honest list pricesHow we calculate prices
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- Input$5.50/MOutput$27.50/MContext1M
- Input$11.00/MOutput$55.00/MContext1M
- Input$11.00/MOutput$55.00/MContext1M
- Input$2.20/MOutput$11.00/MContext1M
- Input$5.50/MOutput$27.50/MContext1M
- Input$11.00/MOutput$55.00/MContext1M
- Input$5.50/MOutput$27.50/MContext1M
- Input$3.30/MOutput$16.50/MContext1M
- Input$5.50/MOutput$27.50/MContext1M
- Input$5.50/MOutput$27.50/MContext200K
- Input$1.10/MOutput$5.50/MContext200K
- Input$3.30/MOutput$16.50/MContext1M
FAQ · CLAUDE-OPUS-4
Frequently asked
How much does claude-opus-4 cost?
Input: $16.50/M per million tokens. Output: $82.50/M per million tokens. The free tier includes a million tokens every month at no cost.
What's the context window for claude-opus-4?
claude-opus-4 supports a context window of 200K tokens, with a maximum output of 8.2K tokens.
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-opus-4 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.