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Claude Sonnet 5 on OpenRouter logo

Claude Sonnet 5 on OpenRouter

LLM APIs · Commercial

Anthropic Claude Sonnet 5 through OpenRouter for agentic coding and tool use; model ID anthropic/claude-sonnet-5, 1M context, $2/M input and $10/M output at intake.

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# Building with Claude Sonnet 5 on OpenRouter

Anthropic Claude Sonnet 5 through OpenRouter for agentic coding and tool use; model ID anthropic/claude-sonnet-5, 1M context, $2/M input and $10/M output at intake.

**Category:** LLM APIs
**Directory listing:** https://tokensand.com/tools/llm-apis/anthropic-claude-sonnet-5-openrouter
**Detected stack:** unknown
**Snippets derived from real docs:** no (fallback)

## Goal

I'm building a project with Claude Sonnet 5 on OpenRouter. Help me ship end-to-end in the smallest number of steps — hackathon speed, production-safe defaults. If any step below is ambiguous or the docs snippet is incomplete, ask me what I'm trying to build before writing code.

### Install
(No canonical install command detected — see docs links below.)

### First call
(No verified example detected — consult the official docs links before writing one.)

## Docs links
- [Official Docs](https://www.anthropic.com/news/claude-sonnet-5)
- [Website](https://openrouter.ai/anthropic/claude-sonnet-5)


## Your task
1. Read the install and first-call blocks above. Write a minimal runnable starter in the detected stack (unknown).
2. Call out any secrets I'll need (API keys, env 
…
Docs:Official DocsWebsite