TokenSpend
All models

Anthropic

Claude Fable 5.1

images

Model id

anthropic/claude-fable-5-1
Try in playgroundGet API key
Input
$10
per M tokens
Output
$50
per M tokens
Cache read
$0.25
per M tokens
Context
1,000K
tokens

Registry contract

Capabilities

Protocols
3
Chat · Responses · Messages · streaming
Tools
2
Chat · Messages
JSON Schema
None
Not supported
Vision
Yes
Chat · Responses · Messages
Reasoning
1
Messages
Output limit
128,000
tokens

canonical anthropic/claude-fable-5-1 · revision anthropic/claude-fable-5-1 · aliases claude-fable-5-1

Provider list price

Pricing

Input$10 / M tokens
Output$50 / M tokens
Cache read$0.25 / M tokens
Cache write (5 min)$12.5 / M tokens
Cache write (1 hour)$20 / M tokens
RoutingFree

Provider list price. BYOK bills your provider; managed credits draw down at these rates. No markup or request fee. Every request is metered per engineer and joined to shipped work.

Registry 2026-09-15.1 · effective 9/15/2026 · Anthropic API pricing

First request

Run it

Python · TokenSpend SDK

from tokenspend import TokenSpend

client = TokenSpend()
resp = client.chat.completions.create(
    model="anthropic/claude-fable-5-1",
    messages=[{"role": "user", "content": "hello"}],
)

TypeScript · TokenSpend SDK

import { TokenSpend } from "@tokenspend/sdk";

const client = new TokenSpend();
const resp = await client.chat.completions.create({
  model: "anthropic/claude-fable-5-1",
  messages: [{ role: "user", content: "hello" }]
});

curl

curl https://api.tokenspend.dev/v1/chat/completions \
  -H "content-type: application/json" \
  -H "Authorization: Bearer $TOKENSPEND_API_KEY" \
  -d '{"model":"anthropic/claude-fable-5-1","messages":[{"role":"user","content":"hello"}]}'

Claude Code integration

export ANTHROPIC_BASE_URL=https://api.tokenspend.dev
export ANTHROPIC_API_KEY=$TOKENSPEND_API_KEY
export ANTHROPIC_MODEL=anthropic/claude-fable-5-1

One request shape reaches every model. Claude Code connects as an integration with two environment variables. Prompts are not stored unless you enable request logging.