Anthropic model on ScaleMax
Fable 5.1 API
Call Fable 5.1 with the model ID fable-5.1 through ScaleMax's OpenAI-compatible API or the native Anthropic Messages API. It costs $10 per million input tokens and $50 per million output tokens, prepaid, with no subscription.
Premium price · Reads images · 1M context
- Model ID
fable-5.1- Maker
- Anthropic
- Input / 1M tokens
- $10
- Output / 1M tokens
- $50
- Context window
- 1,000,000 tokens
- Max output
- 128,000 tokens
Fable 5.1 pricing
ScaleMax publishes one customer rate per model and deducts each completed request from your prepaid balance at that rate: $10 per 1M input tokens and $50 per 1M output tokens for Fable 5.1.
What typical requests cost at the standard rate (token counts are illustrative sizes):
| Request | Size | Cost per request | Per $25 of credit |
|---|---|---|---|
| Chat reply | 2,000 tokens in, 600 out | $0.05 | about 500 requests |
| Coding-agent step | 40,000 tokens in (files + history), 2,000 out | $0.50 | about 50 requests |
| Long-document pass | 200,000 tokens in, 4,000 out | $2.20 | about 11 requests |
The Starter credit pack costs $2.50 and adds $25 of usage credit (larger packs add more per dollar — see how pricing works). Prompt-cache reads, where the model supports caching, can bill below the input rate.
Pay by UPI, PayU or Cashfree (UPI, cards, net banking), Cryptomus (crypto) or PayPal. Prices on this page are in US dollars; India checkout shows rupees. See what ₹1,000 buys for token packs.
How to call Fable 5.1
Create a key in the dashboard, export it as SCALEMAX_API_KEY, and send fable-5.1 as the model. OpenAI-compatible clients use the base URL https://api.scalemax.pro/v1; Anthropic SDKs and Claude Code use the origin https://api.scalemax.pro without /v1. Token pack keys use /token/v1 instead of /v1.
curl https://api.scalemax.pro/v1/chat/completions \
-H "Authorization: Bearer $SCALEMAX_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "fable-5.1",
"messages": [{"role": "user", "content": "Explain this error in one line."}],
"max_tokens": 300
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.scalemax.pro/v1",
api_key=os.environ["SCALEMAX_API_KEY"],
)
reply = client.chat.completions.create(
model="fable-5.1",
messages=[{"role": "user", "content": "Explain this error in one line."}],
max_tokens=300,
)
print(reply.choices[0].message.content)import os
import anthropic
client = anthropic.Anthropic(
base_url="https://api.scalemax.pro", # no /v1: the SDK adds /v1/messages
api_key=os.environ["SCALEMAX_API_KEY"],
)
message = client.messages.create(
model="fable-5.1",
max_tokens=300,
messages=[{"role": "user", "content": "Explain this error in one line."}],
)
print(message.content[0].text)Keep the key server-side. Call GET /v1/models with your key to see every model it can use; the quick start covers errors and streaming.
Capabilities and limits
- Context window: 1,000,000 tokens (1M-token).
- Maximum output: 128,000 tokens per response.
- Supports: Reads images, Tool / function calling, Anthropic Messages API.
- Streaming: server-sent events on every route.
Claude clients sometimes show this ID with a [1m] suffix. That is the same model with its full context; either spelling works.
Works in
Claude Code connects natively over the Anthropic Messages route. Cursor, Cline, Roo Code, Kilo Code, OpenCode, Continue, Aider, Zed and Hermes Agent connect over the OpenAI-compatible route with the same model ID. Setup steps for each are on the integrations page.
Other Anthropic models
| Model | Model ID | Input / 1M | Output / 1M | Context |
|---|---|---|---|---|
| Fable 5.1 | fable-5.1 | $10 | $50 | 1,000,000 |
| Claude Opus 4.6 | claude-opus-4-6 | $5 | $25 | 1,000,000 |
| Claude Opus 4.7 | claude-opus-4-7 | $5 | $25 | 1,000,000 |
| Claude Opus 4.8 | claude-opus-4-8 | $5 | $25 | 1,000,000 |
| Claude Opus 5 | claude-opus-5 | $5 | $25 | 1,000,000 |
Lower-cost alternatives
Models from other makers with a lower output rate. Quality differs by task — test on your own prompts before switching.
| Model | Model ID | Input / 1M | Output / 1M | Context |
|---|---|---|---|---|
| GPT-5.6 Sol | gpt-5.6-sol | $5 | $30 | 1,050,000 |
| GPT-5.6 Terra | gpt-5.6-terra | $2 | $12 | 1,050,000 |
| GPT-6 Sol | gpt-6-sol | $2 | $10 | 1,050,000 |
All models, with their IDs and rates, are on the model list.
Fable 5.1 API questions
What is the API model ID for Fable 5.1?
Use fable-5.1. Send it as the "model" field to https://api.scalemax.pro/v1/chat/completions or, with an Anthropic SDK, to https://api.scalemax.pro/v1/messages.
How much does the Fable 5.1 API cost?
$10 per 1M input tokens and $50 per 1M output tokens at the published ScaleMax rate. A Pay as you go key is prepaid: each completed request is deducted from your credit.
What is the context window of Fable 5.1?
1,000,000 tokens, with up to 128,000 output tokens per response.
Can I use Fable 5.1 in Claude Code or Cursor?
Yes. Claude Code uses the native Anthropic route (ANTHROPIC_BASE_URL=https://api.scalemax.pro). Cursor, Cline, Roo Code and other OpenAI-compatible clients use https://api.scalemax.pro/v1 with the model ID fable-5.1.
Can I pay for Fable 5.1 from India in rupees?
Yes. ScaleMax is prepaid and checkout accepts UPI, cards and net banking in INR, as well as crypto. There is no subscription.
Use Fable 5.1 in your tools
Start calling Fable 5.1
Get a prepaid key, copy the model ID, and send your first request in a couple of minutes.