Claude Sonnet 4.5

Name: Claude Sonnet 4.5
Brand: Anthropic
SKU: claude-sonnet-4-5-20250929

Claude Sonnet 4.5 is an advanced Anthropic Sonnet model tuned for real-world agents, coding workflows, tool use, and multimodal analysis. It balances frontier-level reasoning with practical latency and cost, making it a strong default for software engineering, automation, and complex business...

claude-sonnet-4-5-20250929

Open Relay View integration

relay/request.mjsready to route

POST https://api.pipellm.ai/v1/messages
Authorization: Bearer $PIPELLM_API_KEY
Content-Type: application/json

Model: claude-sonnet-4-5-20250929
See the provider documentation for request parameters.

CONTEXT200K contextprompt window

MAX OUTPUT64Kper response

INPUT$3.00 / Mtoken price

OUTPUT$15.00 / Mtoken price

Route configuration_

Choose a supported call format.

Select a format below to view its documentation. Use the displayed converter route when calling through PipeLLM.

ENDPOINThttps://api.pipellm.aiOne base URL for OpenAI Chat Completions, Responses, Anthropic, and Gemini.

SUPPORTED CALL FORMATS

OpenAI/openai/v1/chat/completionsDocs Responses/responses/v1/responsesDocs Anthropic/anthropic/v1/messagesDocs Gemini/gemini/v1beta/models/{model}:generateContentDocs Choose a call format to open its request and response documentation.

MODEL IDclaude-sonnet-4-5-20250929Use this in every request

GOVERNANCEPolicy controlledApprovals and tool rules apply

PROVIDER AVAILABILITY3 routes

Provider	Context	Max output	Discount	Input / M	Output / M
AWS	200K context	64K	—	$3.00 / M	$15.00 / M
GCP Vertex	200K context	64K	—	$3.00 / M	$15.00 / M
Vertex AI	200K context	64K	—	$3.00 / M	$15.00 / M

Displayed pricing is per one million tokens and may vary by provider.

SUPPORTED SURFACESactive

input: textinput: imageinput: fileoutput: texttool usecache controlcomputer use

Relay governs model access with the same routing policy that Lens keeps visible and auditable.