# Anthropic API (for client systems)

> Too expensive for production features in client systems. OpenAI models give better cost per intelligence.

- Verdict: Skip
- Vendor: Anthropic
- Layer: [AI](https://cloudlesslabs.com/stack/layers/ai.md)
- Last reviewed: 18 October 2026, by Nicolas Dao (Cloudless Labs, Sydney)
- Web page: https://cloudlesslabs.com/stack/anthropic-api/. The whole stack in one file: https://cloudlesslabs.com/stack/brief.md

To be clear: Claude Code is my main development tool. This verdict is only about paying per token inside client products.

## Don't use it when

- High-volume features in client systems, where cost per intelligence decides.

## Provisioning

No provider · No Terraform provider

## Use instead

OpenRouter, picking the model by cost per intelligence.

## Alternatives

- [OpenRouter](https://cloudlesslabs.com/stack/openrouter/index.md): Client systems.

## Where it fits

- [An AI chat or LLM feature](https://cloudlesslabs.com/stack/use-cases/ai-chat.md): don't. Not for high-volume features in client products: cost per intelligence decides there, and OpenAI models through OpenRouter win it. (Claude Code stays my main development tool.) Instead: [OpenRouter](https://cloudlesslabs.com/stack/openrouter/index.md).

## In The Stack Weekly

- [Week 43: DeepSeek V4.1 Flash 1017](https://cloudlesslabs.com/weekly/2026-w43/index.md), worth a pilot

## Related

- [AI](https://cloudlesslabs.com/stack/layers/ai.md): every tool in this layer, with its verdict
- [The whole stack in one file](https://cloudlesslabs.com/stack/brief.md): every use case and tool, for questions that span many
- [Map of every Markdown file on cloudlesslabs.com, with what each one answers](https://ask.cloudlesslabs.com)