Full Model Access
Browse every model currently listed for this provider in the RunAPI catalog.
Anthropic
Claude Opus, Sonnet, and Haiku — Anthropic's reasoning-first LLMs for code, analysis, and extended context.
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MODELS
LLM
MODALITIES
What you get through RunAPI
Transparent Pricing
Review each model's published RunAPI price before sending a request.
No Account Required
Use your RunAPI key without creating a separate provider account.
Unified Billing
Keep this provider and other supported models on one RunAPI balance.
HOW IT WORKS
Call Anthropic models in 3 steps
-
Get Your Key
Sign up for free and create a RunAPI key — no Anthropic account needed.
-
Send a Request
Call the model's RunAPI endpoint with your key and the Anthropic model ID.
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Get Results
Stream the response or receive a webhook when the task completes.
MODELS
Anthropic Models on RunAPI
Text
Claude
Claude API access for Anthropic's LLM across complex reasoning, code, analysis, and extended-context tasks.
$0.08 / 1M tokens
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Why use Anthropic via RunAPI
Published Pricing
Check each Anthropic model's RunAPI price and billing unit before you send a request.
No Account Needed
Use your RunAPI API key for managed Anthropic access without a separate provider account or credential.
Unified Billing
Keep Anthropic and every other supported model on one RunAPI balance and monthly USD invoice.
RunAPI vs Direct Anthropic
| Feature | Direct Anthropic | Via RunAPI |
|---|---|---|
| Account Required | Anthropic account + billing | RunAPI account only |
| API Format | Anthropic API | One RunAPI request format across providers |
| Pricing | Provider-published rates | Published per-model RunAPI pricing |
| Other Models | Anthropic only | 255+ models, all providers |
| Billing | Per-provider invoices | One unified credit balance |
| Support | Provider-specific support | RunAPI support |
Playground
Try Anthropic Models
Response will appear here
QUICKSTART
Call Anthropic Models via RunAPI
Python
import anthropic
client = anthropic.Anthropic(
base_url="https://runapi.ai",
api_key="your-runapi-key"
)
response = client.messages.create(
model="claude-fable-5",
max_tokens=1024,
messages=[{"role": "user", "content": "Review this pull request for security vulnerabilities, performance issues, and suggest concrete improvements."}]
)
What teams build with Anthropic models
Conversational AI
Build chatbots and assistants with Anthropic models.
Content Generation
Generate marketing copy, code, and creative writing at scale.
Image Creation
Create product shots, illustrations, and design assets with Anthropic models.
Data Analysis
Extract insights from documents, spreadsheets, and structured data.
Explore
More Providers on RunAPI
Provider questions
Do I need a Anthropic account?
No. Your RunAPI API key is enough to access the Anthropic models listed in the catalog.
Which Anthropic models are available?
The model cards above reflect the Anthropic models currently available through RunAPI.
How does billing work?
Usage is charged to your RunAPI balance using the price shown for the selected model.
Can I switch to another model?
Yes. Choose another supported model and use its model ID in the same RunAPI workflow.
Where can I find request details?
Open a model page to review its current endpoints, parameters, pricing, and examples.
Start building on one key.
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