anthropic/claude-opus-4.5-batch idClaude Opus 4.5 is Anthropic’s latest model in the Opus series, meant for demanding reasoning tasks and complex problem solving. This model has improvements in general intelligence and vision compared to previous iterations. In addition, it is suited for difficult coding tasks and agentic workflows, especially those with computer use and tool use, and can effectively handle context usage and external memory files.
# Drop-in OpenAI-compatible client$ import { generateText } from 'ai'$$ const { text } = await generateText({$ model: 'anthropic/claude-opus-4.5-batch',$ baseURL: 'https://synapse.garden/api/v1',$ apiKey: process.env.MG_KEY,$ prompt: 'Why is the sky blue?',$ })
| Rate | Per million tokens · USD |
|---|---|
| Input | $2.75/M |
| Output | $13.75/M |
| Cache read | $0.275/M |
| Cache write | $3.44/M |
Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘anthropic/claude-opus-4.5-batch’ and supply your Synapse Garden API key. No code changes beyond the base URL.
Input: $2.75/M per million tokens. Output: $13.75/M per million tokens. The free tier includes a million tokens every month at no cost.
claude-opus-4.5-batch supports a context window of 200K tokens, with a maximum output of 64K tokens.
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.
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.