BifrostAPI
Models/Anthropic/claude-sonnet-4-6
Anthropic

Claude Sonnet 4.6

TextVision
Context
1M
Input · list
$3
/M tokens
Output · list
$15
/M tokens
Channel price
ChannelMultiplier
Claude×1
Claude · route B×2
Claude · Official×7
You pay the list price above times the multiplier. The model id you send stays the same — the channel is set on the API key.

Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work.

Quick start

How to call

POST /v1/chat/completions
bash
curl https://conduit-api.bifrostapi.net/v1/chat/completions \
  -H "Authorization: Bearer ck-YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-sonnet-4-6","messages":[{"role":"user","content":"Hello!"}]}'

→ OpenAI-compatible. Add "stream": true (+ "stream_options":{"include_usage":true}) for SSE.

Reasoning effort: claude-sonnet-4-6-low / -medium / -high / -xhigh / -max, or the param reasoning_effort.

Auth, billing & streaming → Quickstart

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