tb-claude-fable-5-1

Technical specifications

Model ID

tb-claude-fable-5-1

Made by

Anthropic

Input price

₹864 per 1M tokens

Output price

₹4,320 per 1M tokens

Cache read

₹86.40 per 1M tokens

Cache write

₹864 per 1M tokens

Context window

1,000,000 tokens

Max output

128,000 tokens

Input

Text, Image

Output

Text, Tool calls

Streaming

Yes — server-sent events

Anthropic lane

Translated — see the Claude Code guide for recommended flags

Capabilities

• chatsupported
• streamingsupported
• toolssupported
• visionsupported
• —reasoningnot supported
• —structured outputnot supported
• —prompt cachingnot supported
• —token countingnot supported

Only capabilities that passed conformance checks on this model’s routes are listed as supported. Asking for anything else returns 400 capability_not_supported and reserves nothing.

Supported APIs

• POSThttps://api.topbilling.in/v1/chat/completionsChat Completions (OpenAI-compatible)
• POSThttps://api.topbilling.in/v1/messagesMessages (Anthropic-compatible, translated lane)
• GEThttps://api.topbilling.in/v1/models/tb-claude-fable-5-1Model metadata

Usage example

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["TB_API_KEY"],
    base_url="https://api.topbilling.in/v1",
)

response = client.chat.completions.create(
    model="tb-claude-fable-5-1",
    messages=[{"role": "user", "content": "Summarise this ticket in one line."}],
)
print(response.choices[0].message.content)

curl https://api.topbilling.in/v1/messages \
  -H "x-api-key: $TB_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{"model": "tb-claude-fable-5-1", "max_tokens": 256, "messages": [{"role": "user", "content": "Hello"}]}'