Model provider5 models2 labs

AWS Mantle

AWS Mantle serves 5 text models on LLM API from Anthropic and OpenAI.

Models and prices

Prices when AWS Mantle serves the request.

Text 5

Prices per 1M tokens

Sort

Text models on AWS Mantle and their prices on LLM API

Claude Fable 5.1`aws-mantle/claude-fable-5-1`	$10	$50	$0.25	1M
Claude Opus 5`aws-mantle/claude-opus-5`	$5	$25	$0.5	1M
GPT-5.6 Luna`aws-mantle/gpt-5.6-luna`	$0.22	$1.32	$0.022	1.05M
Claude Fable 5`aws-mantle/claude-fable-5`	$10	$50	$1	1M
Claude Sonnet 5`aws-mantle/claude-sonnet-5`	$2	$10	$0.2	1M

Send requests to AWS Mantle

Put aws-mantle/ before a model ID and the request goes to AWS Mantle. If AWS Mantle’s uptime over the last 5 minutes is below 90%, it goes to another provider of the model, unless it sends X-No-Fallback: true. Routing docs

Example: Claude Fable 5.1

POST /v1/messagesSet LLMAPI_KEY to your LLM API key.Anthropic Messages docs

import os

import anthropic

client = anthropic.Anthropic(
    base_url="https://api.llmapi.ai",
    api_key=os.environ["LLMAPI_KEY"],
)

message = client.messages.create(
    model="aws-mantle/claude-fable-5-1",
    max_tokens=16000,
    messages=[{"role": "user", "content": "Hello"}],
)
for block in message.content:
    if block.type == "text":
        print(block.text)

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://api.llmapi.ai",
  apiKey: process.env.LLMAPI_KEY,
});

const message = await client.messages.create({
  model: "aws-mantle/claude-fable-5-1",
  max_tokens: 16000,
  messages: [{ role: "user", content: "Hello" }],
});
for (const block of message.content) {
  if (block.type === "text") console.log(block.text);
}

curl https://api.llmapi.ai/v1/messages \
  -H "x-api-key: $LLMAPI_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "aws-mantle/claude-fable-5-1",
    "max_tokens": 16000,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Prices synced October 27, 2026.