Claude Fable 5 via the Tokenator API

What the model is for

Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding.

Specification

Full nameClaude Fable 5
API IDclaude-fable-5
Model vendorAnthropic
TypeText model (chat / completions)
Context window1M tokens
Max output128K tokens
Image inputyes
Tokenator usage multiplier10× – 12×
Input modalitiestext, image, file
Aliasescursor-claude-fable-5 claude-fable-5[1m]
Supported API formats/v1/chat/completions /v1/responses /v1/messages
Upstream providers2
Current statusavailable
Data updated2026-08-04

Benchmarks

Intelligence index59.9
Coding index76.5
Agentic index52.8

Artificial Analysis data loaded into the catalog for this model.

Upstream providers

ProviderMultiplier
Anthropic Partner #112×
AiPartners Ltd10×

A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.

Example request

curl
curl https://api.tokenator.top/v1/chat/completions \
  -H "Authorization: Bearer sk-your-tokenator-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-fable-5",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Compatible tools

The model can be used in any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code, OpenClaw.

FAQ about Claude Fable 5

What is the API ID of Claude Fable 5?

claude-fable-5 — put this into the model field of your request.

What context window does Claude Fable 5 have?

1M tokens; max output is 128K tokens.

How many tokens will a request cost?

(input + output) × 10× – 12×. See the documentation for details.

Which tools support this model?

Any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code. Setup guides are in the integrations section.