Anthropic: Claude Fable 5: AI model
Claude Fable 5 is an Anthropic model built for autonomous, long-running knowledge work and coding, with a 1M-token context and reasoning support. Reachable from inside Iran through Hormouz.
- Context window:
- 1,000,000 tokens
- Input:
- $10/1M tokens
- Output:
- $50/1M tokens
- Type:
- text, image
- Vision
- Tools
- Streaming
- Long context
Thinking levels: Always thinks · max · xhigh · high · medium · low
Claude Fable 5 is a top-tier Anthropic model designed for long-horizon, complex and asynchronous tasks. The kind of work that would otherwise need frequent human check-ins. It accepts text, image and file inputs, produces text output, supports reasoning and offers a 1M-token context window.
It is particularly strong at end-to-end jobs that would take a person hours or days: it executes well-scoped tasks with few mistakes, self-corrects through verification loops, and handles problems that are long-running, ambiguous or highly multi-step.
Pricing is usage-based: $10 per million input tokens and $50 per million output tokens. Hormouz provides stable access to Claude Fable 5 from inside Iran, with no foreign credit card or circumvention tooling required.
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
Quickstart
curl https://api.hormouz.net/v1/chat/completions \
-H "Authorization: Bearer ng-YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-fable-5",
"messages": [{"role": "user", "content": "Hello!"}]
}'Specs
| Vendor | Anthropic |
|---|---|
| Type | Text, Image |
| Context window | 1,000,000 tokens |
| Pricing | $10.00/M in · $50.00/M out |
| API | Chat Completions |
| Capabilities | Streaming · Vision · Tools |
Benchmarks
Reasoning
Coding
Agentic
Source: Artificial Analysis
Design Arena
How Design Arena works ↗Ranking distribution
3299 tournaments ?
Metrics sourced from Design Arena
Code example
curl https://api.hormouz.net/v1/chat/completions \
-H "Authorization: Bearer ng-YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-fable-5",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
model="anthropic/claude-fable-5",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
model: "anthropic/claude-fable-5",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);Buy the Anthropic: Claude Fable 5 API, paid in rial
- Buy credit with an Iranian bank card; no foreign card or account needed.
- One Hormouz key reaches Anthropic: Claude Fable 5 and 600+ other models, and you pay only for what you use.
- No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.
Use via Hormouz
Connect to this model and 600+ others with one API key, then see usage down to each request.
Request company accessFAQ
- How much does Claude Fable 5 cost?
- Billing is usage-based: $10 per million input tokens and $50 per million output tokens. There is no fixed monthly fee. You pay only for what you use, at the rates shown in the Hormouz dashboard.
- How do I access Claude Fable 5 from inside Iran?
- Create an account on Hormouz and generate an API key. Hormouz provides a stable path to Claude Fable 5 from inside Iran, with no foreign credit card or circumvention tooling required.
- Is Claude Fable 5 compatible with OpenAI code?
- Yes. Hormouz exposes an OpenAI-compatible API. Just change the base URL to Hormouz and swap in your Hormouz key. Your existing OpenAI SDKs and code run without a rewrite.
- What is Claude Fable 5 best at?
- It is built for autonomous, long-running work. Complex multi-step coding and knowledge tasks that would take a person hours or days. It supports reasoning, self-corrects through verification loops, and offers a 1M-token context window with text, image and file input.
Updated 2026-10-13