create_anthropic: Create Anthropic Provider

In aisdk: Unified Interface for AI Model Providers

Create Anthropic Provider

Description

Factory function to create an Anthropic provider.

Usage

create_anthropic(
  api_key = NULL,
  base_url = NULL,
  api_version = NULL,
  headers = NULL,
  name = NULL,
  timeout_seconds = NULL,
  total_timeout_seconds = NULL,
  first_byte_timeout_seconds = NULL,
  connect_timeout_seconds = NULL,
  idle_timeout_seconds = NULL
)

Arguments

api_key	Anthropic API key. Defaults to ANTHROPIC_API_KEY env var.
base_url	Base URL for API calls. Defaults to https://api.anthropic.com/v1.
api_version	Anthropic API version header. Defaults to "2023-06-01".
headers	Optional additional headers.
name	Optional provider name override.
timeout_seconds	Legacy alias for total_timeout_seconds.
total_timeout_seconds	Optional total request timeout in seconds for API calls.
first_byte_timeout_seconds	Optional time-to-first-byte timeout in seconds for API calls.
connect_timeout_seconds	Optional connection-establishment timeout in seconds for API calls.
idle_timeout_seconds	Optional stall timeout in seconds for API calls.

Value

An AnthropicProvider object.

Supported Models

• claude-opus-4-7: Anthropic's most capable model for complex reasoning and coding. (Reasoning, Vision, Tools, Structured) | ctx: 1000k

• claude-opus-4-6: Previous generation of Claude Opus with 1M context. (Reasoning, Vision, Tools, Structured) | ctx: 1000k

• claude-opus-4-5: Claude Opus 4.5 with 200K context. (Reasoning, Vision, Tools, Structured) | ctx: 200k

• claude-sonnet-4-6: Balanced model for coding and agentic workflows with 1M context. (Reasoning, Vision, Tools, Structured) | ctx: 1000k

• claude-sonnet-4-5: Claude Sonnet 4.5 with 200K context. (Reasoning, Vision, Tools, Structured) | ctx: 200k

• claude-sonnet-4: Original Claude Sonnet 4 with 200K context. (Reasoning, Vision, Tools, Structured) | ctx: 200k

• claude-haiku-4-5: Fast and cost-effective model for simple tasks and chatbots. (Vision, Tools, Structured) | ctx: 200k

Examples

if (interactive()) {
  anthropic <- create_anthropic(api_key = "sk-ant-...")
  model <- anthropic$language_model("claude-sonnet-4-20250514")
}

aisdk documentation built on May 29, 2026, 9:07 a.m.