Model pricing
claude-fable-5-2
Claude lane (Anthropic protocol)
Fable is the frontier reasoning tier of the Claude family: built for long-horizon agentic work, multi-step deep research, and the hardest problems — positioned above Opus. Depth first.
Unit: USD per million tokens
| Billing item | Base rate | Your rate (standard group) |
|---|---|---|
| Input | $8.00 | $2.72 |
| Output | $40.00 | $13.60 |
Output bills at 5× the input rate; cached prompt reads bill at a lower rate. Rates on this page come live from the pricing ledger; your authoritative bill is Usage in the workspace.
Official base rates: Anthropic
“MTok: Million tokens. $5 / MTok is $5 for every million tokens.”
How to connect
One key, both protocols: Claude models take the ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN environment variables; GPT models just need the base_url in the OpenAI SDK.