Reddit
reddit.com › r/claudeai › use claude 3 opus from the api to prevent paying a flat $20/month for it
r/ClaudeAI on Reddit: Use Claude 3 Opus from the API to prevent paying a flat $20/month for it
March 27, 2024 -
I highly recommend using Claude 3 Opus from the API, especially if you just want to try it out. It’s not free but the API doesn’t require an upfront flat fee and doesn’t have rate limits etc!
There’s some options for desktop like TypingMind.
For iOS I wanted to suggest my app called Pal Chat that lets you use your own API Key to chat with Claude, and it’s completely free to download: https://apps.apple.com/us/app/pal-ai-chat-client/id6447545085
(The app also has no backend and takes absolutely no usage data. You can verify this by going to the app privacy report in iOS settings!)
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Okay... but Opus is $75 per million tokens. For someone that uses it as a chatbot (not night and day by any means), how does that stack up to $20/month (roughly)?
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Connecting via the API is often cheaper as you are paying per-use. If you don't use $20 worth of service, then there's no need to be paying $20 per month. For desktop users, LibreChat is good and open source. Can connect to numerous APIs. Installation is slightly technical but clearly described. https://github.com/danny-avila/LibreChat
Anthropic
anthropic.com › news › claude-3-family
Introducing the next generation of Claude
The family includes three state-of-the-art models in ascending order of capability: Claude 3 Haiku, Claude 3 Sonnet, and Claude 3 Opus. Each successive model offers increasingly powerful performance, allowing users to select the optimal balance of intelligence, speed, and cost for their specific application. Opus and Sonnet are now available to use in claude.ai and the Claude API which is now generally available in 159 countries.
Claude 3 Opus through an API to Custom GPT via Action
Hey all! I was thinking that it would be a pretty neat hack to get Claude 3 Opus to my own GPT through an API so I don’t have to leave ChatGPT to use it. But I had really hard time to get the openapi specification to wo… More on community.openai.com
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March 19, 2024Amazon Bedrock: Prompt response returns Claude 3 Opus when asked to identify (I am using Claude Sonnet 3.7)
Always refer to your code configuration and the API response metadata for accurate information. Sources Anthropic’s Claude 3 Opus model is now available on Amazon Bedrock | AWS News Blog Reduce costs and latency with Amazon Bedrock Intelligent Prompt Routing and prompt caching (preview) | ... More on repost.aws
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March 21, 2025I made a native iOS app to use Claude 3 Opus and Sonnet for free using your own API Key
I don’t quite understand Anthropic pricing for their API. Maybe you could explain it a little better? Seems like Claude 3 is 1/10th the cost of OpenAi gpt-4 turbo? Is that really right? More on reddit.com
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January 2, 2024I think I am converted... Claude 3 Opus API Smashing Out the Code
Yes, I've got like 4 days left on my Gpt-4 subscription before I cancel it and move to Claude, I've been using the API with the free credits and it's great, I really thought Anthropic wouldn't have a chance after Claude 2, but I've been converted, even sonnet and haiku are great. Although I'll probably come back when Gpt-5 is released, if it is ever released. More on reddit.com
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October 31, 2023Videos
07:25
Claude 3 Opus API (Hands-On Intro and Getting Started) - YouTube
12:00
Claude 3 API Crash Course for BEGINNERS (Haiku, Sonnet, Opus) - ...
19:32
Send Images to Claude 3 Opus API - (Easy AI Python Projects) - YouTube
02:13
Tool use with the Claude 3 model family - YouTube
32:18
Easy AI Python Projects - Build a PDF Prompter App with Claude ...
24:55
Send CSV to Claude 3 Opus API - (Easy AI Python Projects) - YouTube
AIMLAPI
aimlapi.com › build-with-claude-3-opus-api
Build with Claude 3 Opus API
Optimizing logistics and inventory management, and extracting knowledge from unstructured data. ... Gain instant access to Claude 3 Opus through production API: AI/ML API provides direct connectivity to Llama 3 API.
Claude
claude.ai
Claude
Talk with Claude, an AI assistant from Anthropic
Claude Docs
platform.claude.com › docs › en › about-claude › models › overview
Models overview - Claude Docs
All current Claude models support text and image input, text output, multilingual capabilities, and vision. Models are available via the Anthropic API, AWS Bedrock, and Google Vertex AI.
DataCamp
datacamp.com › tutorial › getting-started-with-claude-3-and-the-claude-3-api
Getting Started with Claude 3 and the Claude 3 API | DataCamp
March 13, 2024 - To access Claude 3 Opus for free, you have to sign up for Anthropic API: console.anthropic.com.
Postman
postman.com › postman › anthropic-apis › documentation › dhus72s › claude-api
Claude API | Documentation
We cannot provide a description for this page right now
AWS
docs.aws.amazon.com › amazon bedrock › user guide › amazon bedrock foundation model information › inference request parameters and response fields for foundation models › anthropic claude models › anthropic claude messages api
Anthropic Claude Messages API - Amazon Bedrock
4 days ago - You can use the Messages API to create chat bots or virtual assistant applications. The API manages the conversational exchanges between a user and an Anthropic Claude model (assistant).
OpenRouter
openrouter.ai › anthropic › claude-3-opus
Claude 3 Opus - API, Providers, Stats | OpenRouter
March 5, 2024 - Claude 3 Opus is Anthropic's most powerful model for highly complex tasks. It boasts top-level performance, intelligence, fluency, and understanding. See the launch announcement and benchmark results here ...
promptfoo
promptfoo.dev › providers › anthropic
Anthropic | Promptfoo
1 month ago - Deploy Anthropic's Claude models including Opus, Sonnet, and Haiku for advanced reasoning and conversational AI applications
OpenAI Developer Community
community.openai.com › gpt builders › plugins / actions builders
Claude 3 Opus through an API to Custom GPT via Action - Plugins / Actions builders - OpenAI Developer Community
March 19, 2024 - Hey all! I was thinking that it would be a pretty neat hack to get Claude 3 Opus to my own GPT through an API so I don’t have to leave ChatGPT to use it. But I had really hard time to get the openapi specification to work. I have the API key stored in the “Authentication” thing they have in the Actions.
Anthropic
anthropic.com › api
Claude Developer Platform
Use our API to create new user experiences, products, and ways to work with the most advanced AI models on the market. ... “Claude Opus 4.5 handles long-horizon coding tasks more efficiently than any model we’ve tested.
Anthropic
docs.anthropic.com › en › docs › about-claude › models › overview
Models overview - Anthropic - Claude API
All current Claude models support text and image input, text output, multilingual capabilities, and vision. Models are available via the Anthropic API, AWS Bedrock, and Google Vertex AI.
AWS
aws.amazon.com › blogs › aws › anthropics-claude-3-opus-model-on-amazon-bedrock
Anthropic’s Claude 3 Opus model is now available on Amazon Bedrock | Amazon Web Services
August 9, 2024 - You can learn how to invoke Claude 3 on Amazon Bedrock to generate text or multimodal prompts for image analysis in the Amazon Bedrock documentation. Here is sample JavaScript code to send a Messages API request to generate text: // claude_opus.js - Invokes Anthropic Claude 3 Opus using the Messages API.
Google Cloud Platform
console.cloud.google.com › vertex-ai › publishers › anthropic › model-garden › claude-3-opus
Google Cloud console
Google Cloud Console has failed to load JavaScript sources from www.gstatic.com. Possible reasons are:www.gstatic.com or its IP addresses are blocked by your network administratorGoogle has temporarily blocked your account or network due to excessive automated requestsPlease contact your network ...
Amazon Web Services
aws.amazon.com › generative ai › amazon bedrock › anthropic
Claude by Anthropic - Models in Amazon Bedrock – AWS
1 week ago - Claude Haiku 4.5, Sonnet 4.5, and Opus 4.5 are hybrid reasoning models offering two modes: near-instant responses and extended thinking for deeper reasoning.
AWS re:Post
repost.aws › questions › QUH52o99ofQeaKcydFfqE0tQ › amazon-bedrock-prompt-response-returns-claude-3-opus-when-asked-to-identify-i-am-using-claude-sonnet-3-7
Amazon Bedrock: Prompt response returns Claude 3 Opus when asked to identify (I am using Claude Sonnet 3.7) | AWS re:Post
March 21, 2025 - Always refer to your code configuration and the API response metadata for accurate information. Sources Anthropic’s Claude 3 Opus model is now available on Amazon Bedrock | AWS News Blog Reduce costs and latency with Amazon Bedrock Intelligent Prompt Routing and prompt caching (preview) | ...
Puter
developer.puter.com › tutorials › free-unlimited-claude-35-sonnet-api
Free, Unlimited Claude API
1 month ago - Getting StartedExample 1: Basic ... 3: Using different Claude modelsAvailable ModelsRelated · This tutorial will show you how to use Puter.js to access Claude's advanced AI capabilities (such as Claude Sonnet 4.5, Claude Opus 4.5, Claude Haiku 4.5) for free, without any API keys, backend, ...
Segmind
segmind.com › models › claude-3-opus › api
Claude 3 Opus API Documentation
Complete API documentation for Claude 3 Opus. Learn how to integrate this model into your applications.
Beebom
beebom.com › how-access-claude-3-api-opus-sonnet-models-examples
How to Access Claude 3 API for Opus and Sonnet Models (With Examples) | Beebom
October 15, 2025 - You can start using the API for Opus and Sonnet models. However, API access for the smallest Haiku model is not available yet. You can also try some code examples and test the models on your prompt.